| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
1001 - Document - Document and Entity Information |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DocumentandEntityInformation |
| 2 |
Implied Table |
Table |
* |
* |
implied:Table |
| 3 |
Document - Document and Entity Information [Abstract] |
Abstract |
|
|
wns:DocumentandEntityInformationAbstract |
| 4 |
Document Type |
Concept (Submission Type) |
For Period |
|
dei:DocumentType |
| 5 |
Amendment Flag |
Concept (Yes/No) |
For Period |
|
dei:AmendmentFlag |
| 6 |
Document Period End Date |
Concept (Date) |
For Period |
|
dei:DocumentPeriodEndDate |
| 7 |
Document Fiscal Year Focus |
Concept (Year) |
For Period |
|
dei:DocumentFiscalYearFocus |
| 8 |
Document Fiscal Period Focus |
Concept (Fiscal Period) |
For Period |
|
dei:DocumentFiscalPeriodFocus |
| 9 |
Trading Symbol |
Concept (Text/String) |
For Period |
|
dei:TradingSymbol |
| 10 |
Entity Registrant Name |
Concept (Text/String) |
For Period |
|
dei:EntityRegistrantName |
| 11 |
Entity Central Index Key |
Concept (CIK Number) |
For Period |
|
dei:EntityCentralIndexKey |
| 12 |
Current Fiscal Year End Date |
Concept (Month/Day) |
For Period |
|
dei:CurrentFiscalYearEndDate |
| 13 |
Entity Well-known Seasoned Issuer |
Concept (Yes/No) |
For Period |
|
dei:EntityWellKnownSeasonedIssuer |
| 14 |
Entity Current Reporting Status |
Concept (Yes/No) |
For Period |
|
dei:EntityCurrentReportingStatus |
| 15 |
Entity Filer Category |
Concept (Filer Category) |
For Period |
|
dei:EntityFilerCategory |
| 16 |
Entity Common Stock, Shares Outstanding |
Concept (Shares) |
As Of |
|
dei:EntityCommonStockSharesOutstanding |
| 17 |
1003 - Statement - Consolidated Statements of Financial Position |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000 |
| 18 |
Implied Table |
Table |
* |
* |
implied:Table |
| 19 |
Statement of financial position [abstract] |
Abstract |
|
|
ifrs-full:StatementOfFinancialPositionAbstract |
| 20 |
ASSETS |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 21 |
Current assets: |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 22 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 23 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 24 |
Trade receivables, net |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentTradeReceivablesNet |
| 25 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
wns:UnbilledRevenueCurrent |
| 26 |
Funds held for clients |
Concept (Monetary) |
As Of |
Debit |
wns:FundsHeldForClients1 |
| 27 |
Derivative assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentDerivativeFinancialAssets |
| 28 |
Prepayments and other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 29 |
Total current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 30 |
Non-current assets: |
Abstract |
|
|
ifrs-full:NoncurrentAssetsAbstract |
| 31 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 32 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 33 |
Property and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 34 |
Derivative assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 35 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 36 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssetsAvailableforsale |
| 37 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentAssets |
| 38 |
Total non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 39 |
TOTAL ASSETS |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 40 |
LIABILITIES AND EQUITY |
Abstract |
|
|
ifrs-full:EquityAndLiabilitiesAbstract |
| 41 |
Current liabilities: |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 42 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 43 |
Provisions and accrued expenses |
Concept (Monetary) |
As Of |
Credit |
wns:CurrentProvisionsAndAccruedExpenses |
| 44 |
Derivative liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 45 |
Pension and other employee obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisionsForEmployeeBenefits |
| 46 |
Current portion of long term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 47 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
wns:DeferredRevenueCurrent1 |
| 48 |
Current taxes payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 49 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 50 |
Total current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 51 |
Non-current liabilities: |
Abstract |
|
|
ifrs-full:NoncurrentLiabilitiesAbstract |
| 52 |
Derivative liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentDerivativeFinancialLiabilities |
| 53 |
Pension and other employee obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisionsForEmployeeBenefits |
| 54 |
Long term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 55 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
wns:DeferredRevenueNonCurrent1 |
| 56 |
Other non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 57 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 58 |
Total non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 59 |
TOTAL LIABILITIES |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 60 |
Shareholders' equity: |
Abstract |
|
|
ifrs-full:EquityAbstract |
| 61 |
Share capital (ordinary shares $0.16 (10 pence) par value, authorized 60,000,000 shares; issued: 54,834,080 shares and 53,312,559 shares each as at March 31, 2018 and March 31, 2017, respectively) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 62 |
Share premium |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:SharePremium |
| 63 |
Retained earnings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 64 |
Other components of equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AccumulatedOtherComprehensiveIncome |
| 65 |
Total shareholder's equity, including shares held in treasury |
Concept (Monetary) |
As Of |
Credit |
wns:ShareholdersEquityIncludingSharesHeldInTreasury |
| 66 |
Less: 4,400,000 shares as at March 31, 2018 and 3,300,000 shares as at March 31, 2017, held in treasury, at cost |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TreasuryShares |
| 67 |
Total shareholders' equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 68 |
TOTAL LIABILITIES AND EQUITY |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 69 |
1004 - Statement - Consolidated Statements of Financial Position (Parenthetical) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000Parenthetical |
| 70 |
Implied Table |
Table |
* |
* |
implied:Table |
| 71 |
Statement of financial position [abstract] |
Abstract |
|
|
ifrs-full:StatementOfFinancialPositionAbstract |
| 72 |
Share capital, par value |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 73 |
Share capital, authorized |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesAuthorised |
| 74 |
Share capital, issued |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesIssued |
| 75 |
Shares held in treasury, shares |
Concept (Shares) |
As Of |
|
ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates |
| 76 |
1005 - Statement - Consolidated Statements of Income |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByNatureOfExpense-320000 |
| 77 |
Implied Table |
Table |
* |
* |
implied:Table |
| 78 |
Profit or loss [abstract] |
Abstract |
|
|
ifrs-full:IncomeStatementAbstract |
| 79 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromRenderingOfServices |
| 80 |
Cost of revenue |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfSales |
| 81 |
Gross profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GrossProfit |
| 82 |
Operating expenses: |
Abstract |
|
|
ifrs-full:ExpenseByNatureAbstract |
| 83 |
Selling and marketing expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:SalesAndMarketingExpense |
| 84 |
General and administrative expenses |
Concept (Monetary) |
For Period |
Debit |
wns:GeneralAndAdministrativeExpense2 |
| 85 |
Foreign exchange gain, net |
Concept (Monetary) |
For Period |
Credit |
wns:GainsLossesOnExchangeDifferencesRecognisedInProfitOrLoss |
| 86 |
Impairment of goodwill |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 87 |
Amortization of intangible assets |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 88 |
Operating profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromOperatingActivities |
| 89 |
Other income, net |
Concept (Monetary) |
For Period |
Credit |
wns:OtherNonOperatingIncome1 |
| 90 |
Finance expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 91 |
Profit before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 92 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 93 |
Profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 94 |
Earnings per share of ordinary share |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 95 |
Basic |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 96 |
Diluted |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 97 |
1006 - Statement - Consolidated Statements of Comprehensive Income |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfComprehensiveIncomeOCIComponentsPresentedNetOfTax-410000 |
| 98 |
Implied Table |
Table |
* |
* |
implied:Table |
| 99 |
Statement of comprehensive income [abstract] |
Abstract |
|
|
ifrs-full:StatementOfComprehensiveIncomeAbstract |
| 100 |
Profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 101 |
Other comprehensive income/(loss), net of taxes - Items that will not be reclassified to profit or loss: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 102 |
Pension adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 103 |
Other comprehensive income/(loss), net of taxes - Items that will be reclassified subsequently to profit or loss: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 104 |
Current period (loss) /gain |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax |
| 105 |
Reclassification to profit/(loss) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax |
| 106 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation |
| 107 |
Income tax (provision)/benefit relating to above |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss |
| 108 |
Other comprehensive income/(loss), net of taxes - Items that will be reclassified subsequently to profit or loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 109 |
Total other comprehensive income/(loss), net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 110 |
Total comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 111 |
1007 - Statement - Consolidated Statements of Changes in Equity |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfChangesInEquity-610000 |
| 112 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 113 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 114 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 115 |
Share capital [member] |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 116 |
Share premium [member] |
Member |
|
|
ifrs-full:SharePremiumMember |
| 117 |
Retained earnings [member] |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 118 |
Other components of equity: Foreign currency translation reserve [member] |
Member |
|
|
ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember |
| 119 |
Other components of equity: Cash flow hedging reserve [member] |
Member |
|
|
ifrs-full:ReserveOfCashFlowHedgesMember |
| 120 |
Other components of equity: Pension adjustments [member] |
Member |
|
|
ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember |
| 121 |
Treasury shares [member] |
Member |
|
|
ifrs-full:TreasurySharesMember |
| 122 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 123 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 124 |
Beginning balance |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 125 |
Shares issued for exercised options and RSUs (Refer note 22) |
Concept (Monetary) |
For Period |
Credit |
wns:IncreaseDecreaseThroughExerciseOfOptionsAndOtherEquityInstruments |
| 126 |
Shares issued for exercised options and RSUs (Refer note 22), shares |
Concept (Shares) |
For Period |
|
ifrs-full:IncreaseDecreaseInNumberOfOrdinarySharesIssued |
| 127 |
Purchase of treasury shares (Refer note 18) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchaseOfTreasuryShares |
| 128 |
Purchase of treasury shares (Refer note 18), shares |
Concept (Shares) |
For Period |
|
wns:PurchaseOfTreasurySharesShares |
| 129 |
Share-based compensation expense (Refer note 22) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions |
| 130 |
Purchase of equity from non-controlling interest |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl |
| 131 |
Excess tax benefits relating to share-based options and RSUs (Refer note 23) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions |
| 132 |
Transactions with owners |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners |
| 133 |
Transactions with owners, shares |
Concept (Shares) |
For Period |
|
ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding |
| 134 |
Profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 135 |
Other comprehensive income/(loss), net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 136 |
Total comprehensive income/(loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 137 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 138 |
Ending balance |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 139 |
1008 - Statement - Consolidated Statements of Cash Flows |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfCashFlowsIndirectMethod-520000 |
| 140 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 141 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 142 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 143 |
MTS HealthHelp Inc. [member] |
Member |
|
|
wns:MTSHealthHelpIncMember |
| 144 |
Denali Sourcing Services Inc. [member] |
Member |
|
|
wns:DenaliSourcingServicesIncMember |
| 145 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 146 |
Telkom SA SOC Limited [member] |
Member |
|
|
wns:TelkomSASOCLimitedMember |
| 147 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 148 |
Cash flows from operating activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 149 |
Profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 150 |
Adjustments to reconcile profit to net cash generated from operating activities: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 151 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense |
| 152 |
Impairment of goodwill |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForImpairmentLossRecognisedInProfitOrLossGoodwill |
| 153 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForSharebasedPayments |
| 154 |
Amortization of debt issue cost |
Concept (Monetary) |
For Period |
Debit |
wns:AmortizationOfDebtIssueCosts |
| 155 |
Allowance for doubtful trade receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeAndOtherReceivables |
| 156 |
Unrealized exchange loss/(gain), net |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains |
| 157 |
Current tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncomeTaxExpense |
| 158 |
Interest expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForInterestExpense |
| 159 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForInterestIncome |
| 160 |
Dividend income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForDividendIncome |
| 161 |
Unrealized gain on investments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForFairValueGainsLosses |
| 162 |
Income from funds held in escrow |
Concept (Monetary) |
For Period |
Debit |
wns:AdjustmentsForIncomeFromFundsHeldInEscrow |
| 163 |
Reversal of contingent consideration in relation to acquisition |
Concept (Monetary) |
For Period |
Debit |
wns:AdjustmentsDueToReversalOfContingentConsiderationInRelationToBusinessCombination |
| 164 |
Loss/ (gain) on sale of property and equipment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment |
| 165 |
Deferred income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDeferredTaxExpense |
| 166 |
Deferred rent |
Concept (Monetary) |
For Period |
Debit |
wns:AdjustmentsForDeferredRent |
| 167 |
Excess tax benefit from share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
wns:ExcessTaxExpenseBenefitFromShareBasedCompensationOperatingActivities |
| 168 |
Unrealized gain on derivative instruments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives |
| 169 |
Others, net |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherAdjustmentsToReconcileProfitLoss |
| 170 |
Changes in operating assets and liabilities: |
Abstract |
|
|
wns:ChangeInOperatingAssetsAndLiabilitiesAbstract |
| 171 |
Trade receivables and unbilled revenue |
Concept (Monetary) |
For Period |
Debit |
wns:AdjustmentsForDecreaseIncreaseInTradeReceivablesAndUnbilledRevenue |
| 172 |
Other assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets |
| 173 |
Trade payables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable |
| 174 |
Deferred revenue |
Concept (Monetary) |
For Period |
Debit |
wns:AdjustmentsForIncreaseDecreaseInDeferredRevenue |
| 175 |
Other liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities |
| 176 |
Cash generated from operating activities before interest and income taxes: |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperations |
| 177 |
Income taxes paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities |
| 178 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsOperatingActivities |
| 179 |
Interest received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsOperatingActivities |
| 180 |
Net cash provided by operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 181 |
Cash flows from investing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 182 |
Acquisition of subsidiaries and businesses, net of cash acquired |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities |
| 183 |
Adjustment towards acquisition |
Concept (Monetary) |
For Period |
Credit |
wns:BusinessCombinationWorkingCapitalAdjustments |
| 184 |
Repayment of long-term debt of subsidiaries |
Concept (Monetary) |
For Period |
Credit |
wns:RepaymentOfLongtermDebtAcquiredInBusinessCombinationClassifiedAsInvestingActivities |
| 185 |
Restricted cash, held in escrow |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentsToRestrictedCashHeldInEscrow |
| 186 |
Payment of contingent considerations in relation to acquisitions |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentOfContingentConsiderationLiabilities |
| 187 |
Proceeds from restricted cash, held in escrow |
Concept (Monetary) |
For Period |
Debit |
wns:ProceedsFromRestrictedCashHeldInEscrow |
| 188 |
Government grant received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities |
| 189 |
Government grants repaid |
Concept (Monetary) |
For Period |
Credit |
wns:RepaymentsOfGovernmentGrantsClassifiedAsInvestingActivities |
| 190 |
Purchase of property and equipment and intangible assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets |
| 191 |
Investment in mutual funds |
Concept (Monetary) |
For Period |
Credit |
wns:PurchaseOfInvestmentsInMutualFundsClassifiedAsInvestingActivities |
| 192 |
Marketable securities (purchased)/sold, net |
Concept (Monetary) |
For Period |
Debit |
wns:ProceedsFromPaymentsForMarketableSecurities |
| 193 |
Proceeds from sale of property and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 194 |
Investment in fixed deposits |
Concept (Monetary) |
For Period |
Credit |
wns:PurchaseOfInvestmentsInFixedDeposits |
| 195 |
Proceeds from maturity of fixed deposits |
Concept (Monetary) |
For Period |
Debit |
wns:ProceedsFromInvestmentsInFixedDeposits |
| 196 |
Dividends received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedClassifiedAsInvestingActivities |
| 197 |
Proceeds from maturity of fixed maturity plans ("FMPs") |
Concept (Monetary) |
For Period |
Debit |
wns:ProceedsFromSaleOrMaturityOfInvestmentsInFixedMaturityPlansClassifiedAsInvestingActivities |
| 198 |
Net cash used in investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 199 |
Cash flows from financing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 200 |
Buyback of shares |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsToAcquireOrRedeemEntitysShares |
| 201 |
Proceeds from exercise of stock options |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromExerciseOfOptions |
| 202 |
Proceeds from long term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromNoncurrentBorrowings |
| 203 |
Payment of debt issuance cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsForDebtIssueCosts |
| 204 |
Repayment of long term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfNoncurrentBorrowings |
| 205 |
Repayments of short term borrowings, net |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfCurrentBorrowings |
| 206 |
Purchase of equity of non-controlling interest |
Concept (Monetary) |
For Period |
Credit |
wns:PurchaseOfNonControllingInterests |
| 207 |
Excess tax benefit from share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
wns:CashFlowsFromUsedInIncreaseDecreaseInExcessTaxBenefitFromSharebasedCompensationExpense |
| 208 |
Net cash (used in)/provided by financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 209 |
Exchange difference on cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 210 |
Net change in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalents |
| 211 |
Cash and cash equivalents at the beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 212 |
Cash and cash equivalents at the end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 213 |
Non-cash transactions: Investing activities |
Abstract |
|
|
wns:NoncashInvestingActivitiesAbstract |
| 214 |
(i) Liability towards property and equipment and intangible assets purchased on credit |
Concept (Monetary) |
As Of |
Credit |
wns:NoncashLiabilityTowardsPropertyAndEquipmentAndIntangibleAssetsPurchasedOnCreditOrDeferredCredit |
| 215 |
(ii) Contingent consideration payable towards acquisitions |
Concept (Monetary) |
For Period |
Credit |
wns:NoncashContingentConsiderationPayableTowardsAcquisitions |
| 216 |
(iii) Liability towards deferred consideration |
Concept (Monetary) |
As Of |
Credit |
wns:BusinessAcquisitionDeferredConsideration |
| 217 |
(iv) Release of restricted cash, held in escrow |
Concept (Monetary) |
For Period |
Debit |
wns:ReleaseOfRestrictedCashHeldInEscrow |
| 218 |
Non-cash transactions: Financing activities |
Abstract |
|
|
wns:NoncashFinancingActivitiesAbstract |
| 219 |
(i) Short term line of credit |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate |
| 220 |
1009 - Statement - Consolidated Statements of Cash Flows (Parenthetical) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/StatementOfCashFlowsIndirectMethod-520000Parenthetical |
| 221 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 222 |
Liabilities arising from financing activities [axis] |
Axis |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis |
| 223 |
Liabilities arising from financing activities [member] |
Member |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember |
| 224 |
Long term debt (including current portion) [member] |
Member |
|
|
ifrs-full:LongtermBorrowingsMember |
| 225 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 226 |
Opening Balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesArisingFromFinancingActivities |
| 227 |
Cash flows |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities |
| 228 |
Non-cash changes amortization of debt issuance cost |
Concept (Monetary) |
For Period |
Credit |
wns:IncreaseDecreaseInLiabilitiesArisingFromFinancingActivitiesResultingFromNonCashTransactions |
| 229 |
Closing balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesArisingFromFinancingActivities |
| 230 |
1010 - Disclosure - Company overview |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGeneralInformationAboutFinancialStatementsExplanatory |
| 231 |
Implied Table |
Table |
* |
* |
implied:Table |
| 232 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 233 |
Company overview |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory |
| 234 |
1011 - Disclosure - Summary of significant accounting policies |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 235 |
Implied Table |
Table |
* |
* |
implied:Table |
| 236 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 237 |
Summary of significant accounting policies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 238 |
1012 - Disclosure - New accounting pronouncements not yet adopted by the Company |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations |
| 239 |
Implied Table |
Table |
* |
* |
implied:Table |
| 240 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 241 |
New accounting pronouncements not yet adopted by the Company |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations |
| 242 |
1013 - Disclosure - Business Combinations |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBusinessCombinationsExplanatory |
| 243 |
Implied Table |
Table |
* |
* |
implied:Table |
| 244 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 245 |
Business Combinations |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBusinessCombinationsExplanatory |
| 246 |
1014 - Disclosure - Cash and cash equivalents |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory |
| 247 |
Implied Table |
Table |
* |
* |
implied:Table |
| 248 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 249 |
Cash and cash equivalents |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory |
| 250 |
1015 - Disclosure - Investments |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 251 |
Implied Table |
Table |
* |
* |
implied:Table |
| 252 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 253 |
Investments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 254 |
1016 - Disclosure - Trade receivables, net |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatory |
| 255 |
Implied Table |
Table |
* |
* |
implied:Table |
| 256 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 257 |
Trade receivables, net |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory |
| 258 |
1017 - Disclosure - Prepayments and other assets |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPrepaymentsAndOtherAssetsExplanatory |
| 259 |
Implied Table |
Table |
* |
* |
implied:Table |
| 260 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 261 |
Prepayments and other assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfPrepaymentsAndOtherAssetsExplanatory |
| 262 |
1018 - Disclosure - Goodwill |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGoodwillExplanatory |
| 263 |
Implied Table |
Table |
* |
* |
implied:Table |
| 264 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 265 |
Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGoodwillExplanatory |
| 266 |
1019 - Disclosure - Intangible assets |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatory |
| 267 |
Implied Table |
Table |
* |
* |
implied:Table |
| 268 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 269 |
Intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIntangibleAssetsExplanatory |
| 270 |
1020 - Disclosure - Property and equipment |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory |
| 271 |
Implied Table |
Table |
* |
* |
implied:Table |
| 272 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 273 |
Property and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory |
| 274 |
1021 - Disclosure - Loans and borrowings |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatory |
| 275 |
Implied Table |
Table |
* |
* |
implied:Table |
| 276 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 277 |
Loans and borrowings |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBorrowingsExplanatory |
| 278 |
1022 - Disclosure - Financial instruments |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory |
| 279 |
Implied Table |
Table |
* |
* |
implied:Table |
| 280 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 281 |
Financial instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialInstrumentsExplanatory |
| 282 |
1023 - Disclosure - Pension and other employee obligations |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatory |
| 283 |
Implied Table |
Table |
* |
* |
implied:Table |
| 284 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 285 |
Pension and other employee obligations |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEmployeeBenefitsExplanatory |
| 286 |
1024 - Disclosure - Provisions and accrued expenses |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsAndAccruedExpensesExplanatory |
| 287 |
Implied Table |
Table |
* |
* |
implied:Table |
| 288 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 289 |
Provisions and accrued expenses |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfProvisionsAndAccruedExpensesExplanatory |
| 290 |
1025 - Disclosure - Deferred revenue |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredIncomeExplanatory |
| 291 |
Implied Table |
Table |
* |
* |
implied:Table |
| 292 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 293 |
Deferred revenue |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDeferredIncomeExplanatory |
| 294 |
1026 - Disclosure - Other liabilities |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherLiabilitiesExplanatory |
| 295 |
Implied Table |
Table |
* |
* |
implied:Table |
| 296 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 297 |
Other liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherLiabilitiesExplanatory |
| 298 |
1027 - Disclosure - Share capital |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIssuedCapitalExplanatory |
| 299 |
Implied Table |
Table |
* |
* |
implied:Table |
| 300 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 301 |
Share capital |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIssuedCapitalExplanatory |
| 302 |
1028 - Disclosure - Expenses by nature |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatory |
| 303 |
Implied Table |
Table |
* |
* |
implied:Table |
| 304 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 305 |
Expenses by nature |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfExpensesByNatureExplanatory |
| 306 |
1029 - Disclosure - Finance expense |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceCostExplanatory |
| 307 |
Implied Table |
Table |
* |
* |
implied:Table |
| 308 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 309 |
Finance expense |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceCostExplanatory |
| 310 |
1030 - Disclosure - Other income, net |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExplanatory |
| 311 |
Implied Table |
Table |
* |
* |
implied:Table |
| 312 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 313 |
Other income, net |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceIncomeExplanatory |
| 314 |
1031 - Disclosure - Share-based payments |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatory |
| 315 |
Implied Table |
Table |
* |
* |
implied:Table |
| 316 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 317 |
Share-based payments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory |
| 318 |
1032 - Disclosure - Income taxes |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory |
| 319 |
Implied Table |
Table |
* |
* |
implied:Table |
| 320 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 321 |
Income taxes |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIncomeTaxExplanatory |
| 322 |
1033 - Disclosure - Earnings per share |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatory |
| 323 |
Implied Table |
Table |
* |
* |
implied:Table |
| 324 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 325 |
Earnings per share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEarningsPerShareExplanatory |
| 326 |
1034 - Disclosure - Related party |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory |
| 327 |
Implied Table |
Table |
* |
* |
implied:Table |
| 328 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 329 |
Related party |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRelatedPartyExplanatory |
| 330 |
1035 - Disclosure - Operating segments |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatory |
| 331 |
Implied Table |
Table |
* |
* |
implied:Table |
| 332 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 333 |
Operating segments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory |
| 334 |
1036 - Disclosure - Commitment and Contingencies |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatory |
| 335 |
Implied Table |
Table |
* |
* |
implied:Table |
| 336 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 337 |
Commitment and Contingencies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory |
| 338 |
1037 - Disclosure - Additional capital disclosures |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory |
| 339 |
Implied Table |
Table |
* |
* |
implied:Table |
| 340 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 341 |
Additional capital disclosures |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory |
| 342 |
1038 - Disclosure - Summary of significant accounting policies (Policies) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies |
| 343 |
Implied Table |
Table |
* |
* |
implied:Table |
| 344 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 345 |
Basis of preparation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory |
| 346 |
Basis of measurement |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements |
| 347 |
Use of estimates and judgments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory |
| 348 |
Basis of consolidation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfConsolidationExplanatory |
| 349 |
Functional and presentation currency |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory |
| 350 |
Foreign currency transactions and translation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory |
| 351 |
Financial instruments - initial recognition and subsequent measurement |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory |
| 352 |
Equity and share capital |
Concept (Text Block (HTML)) |
For Period |
|
wns:DescriptionOfAccountingPolicyForEquityShareCapitalExplanatory |
| 353 |
Cash and cash equivalents |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents |
| 354 |
Investments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 355 |
Funds held for clients |
Concept (Text Block (HTML)) |
For Period |
|
wns:DescriptionOfAccountingPolicyForFundsHeldForClientsExplanatory |
| 356 |
Property and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory |
| 357 |
Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory |
| 358 |
Intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory |
| 359 |
Impairment of intangible assets and goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory |
| 360 |
Employee benefits |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory |
| 361 |
Share-based payments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory |
| 362 |
Provisions and accrued expenses |
Concept (Text Block (HTML)) |
For Period |
|
wns:DescriptionOfAccountingPolicyForProvisionsAndAccruedExpenseExplanatory |
| 363 |
Revenue recognition |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue |
| 364 |
Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory |
| 365 |
Income taxes |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory |
| 366 |
Finance expense |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinanceCostsExplanatory |
| 367 |
Earnings per share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory |
| 368 |
Government grants |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants |
| 369 |
1039 - Disclosure - Summary of significant accounting policies (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryTables |
| 370 |
Implied Table |
Table |
* |
* |
implied:Table |
| 371 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 372 |
Estimated Useful Lives of Property and Equipment |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfPropertyPlantAndEquipmentEstimatedUsefulLivesExplanatory |
| 373 |
Estimated Useful Life of Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfIntangibleAssetEstimatedUsefulLifeExplanatory |
| 374 |
1040 - Disclosure - Business Combinations (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBusinessCombinationsExplanatoryTables |
| 375 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 376 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 377 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 378 |
MTS HealthHelp Inc. [member] |
Member |
|
|
wns:MTSHealthHelpIncMember |
| 379 |
Denali Sourcing Services Inc. [member] |
Member |
|
|
wns:DenaliSourcingServicesIncMember |
| 380 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 381 |
Telkom SA SOC Limited [member] |
Member |
|
|
wns:TelkomSASOCLimitedMember |
| 382 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 383 |
Purchase Price Allocation to Assets Acquired and Liabilities Assumed |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory |
| 384 |
1041 - Disclosure - Cash and cash equivalents (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables |
| 385 |
Implied Table |
Table |
* |
* |
implied:Table |
| 386 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 387 |
Summary of Cash and Cash Equivalents |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory |
| 388 |
1042 - Disclosure - Investments (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatoryTables |
| 389 |
Implied Table |
Table |
* |
* |
implied:Table |
| 390 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 391 |
Summary of Investments |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 392 |
1043 - Disclosure - Trade receivables, net (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatoryTables |
| 393 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 394 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 395 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 396 |
Trade receivables [member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 397 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 398 |
Summary of Trade Receivables |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialAssetsExplanatory |
| 399 |
Movement in Allowances for Doubtful Trade Receivable |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory |
| 400 |
1044 - Disclosure - Prepayments and other assets (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPrepaymentsAndOtherAssetsExplanatoryTables |
| 401 |
Implied Table |
Table |
* |
* |
implied:Table |
| 402 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 403 |
Summary of Prepayment and Other Assets |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutPrepaymentsAndOtherAssetsExplanatory |
| 404 |
1045 - Disclosure - Goodwill (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGoodwillExplanatoryTables |
| 405 |
Implied Table |
Table |
* |
* |
implied:Table |
| 406 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 407 |
Summary of the Carrying Value of Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfCarryingAmountOfGoodwillExplanatory |
| 408 |
Summary of Movement in Goodwill by Reportable Segment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory |
| 409 |
Carrying Value of Goodwill Allocated to Cash Generating Units |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory |
| 410 |
Key Assumptions Used in Performing Impairment Test, by each CGU |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutKeyAssumptionsByCGUForImpairmentTestExplanatory |
| 411 |
1046 - Disclosure - Intangible assets (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatoryTables |
| 412 |
Implied Table |
Table |
* |
* |
implied:Table |
| 413 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 414 |
Change in Carrying Value of Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory |
| 415 |
Estimated Remaining Weighted Average Amortization Periods for Definite Lived Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfEstimatedRemainingWeightedAverageAmortizationPeriodsForIntangibleAssetsExplanatory |
| 416 |
Estimated Annual Amortization Expense |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfEstimatedAmortizationExpenseForIntangibleAssetsExplanatory |
| 417 |
1047 - Disclosure - Property and equipment (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables |
| 418 |
Implied Table |
Table |
* |
* |
implied:Table |
| 419 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 420 |
Changes in Carrying Value of Property and Equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 421 |
1048 - Disclosure - Loans and borrowings (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatoryTables |
| 422 |
Implied Table |
Table |
* |
* |
implied:Table |
| 423 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 424 |
Summary of Long-term Loans and Borrowings |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory |
| 425 |
1049 - Disclosure - Financial instruments (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatoryTables |
| 426 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 427 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 428 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 429 |
Trade receivables [member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 430 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 431 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 432 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 433 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 434 |
Carrying Value and Fair Value of Financial Instruments by Class |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory |
| 435 |
Financial Assets and Liabilities Subject to Offsetting, Enforceable Master Netting Arrangements or Similar Agreements |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOffsettingOfFinancialAssetsAndFinancialLiabilitiesExplanatory |
| 436 |
Assets and Liabilities Measured at Fair Value on Recurring Basis |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory |
| 437 |
Summary of Contingent Consideration Categorized Under Level 3 Fair Value Measurement |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfContingentLiabilitiesExplanatory |
| 438 |
Notional Values of Outstanding Foreign Exchange Forward Contracts, Foreign Exchange Option Contracts and Interest Rate Swap Contracts |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory |
| 439 |
Gain/(Loss) Reclassified from Other Comprehensive Income into Consolidated Statement of Income |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfAnalysisOfProfitOrLossAndOtherComprehensiveIncomeByItemSubjectToReclassificationExplanatory |
| 440 |
Foreign Currency Risk from Non-derivative Financial Instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory |
| 441 |
Percentage of Revenue Generated from Top Customer and Top Five Customers |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfRevenueConcentrationsOfRiskByCustomersExplanatory |
| 442 |
Age-wise Break-up of Trade Receivables, Net of Allowances that are Past Due Beyond Credit Period |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedExplanatory |
| 443 |
Contractual Maturities of Financial Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfMaturityAnalysisForFinancialLiabilitiesExplanatory |
| 444 |
Summary of Net Cash Position |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfLiquidityAndFinancialIndebtednessExplanatory |
| 445 |
1050 - Disclosure - Pension and other employee obligations (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatoryTables |
| 446 |
Implied Table |
Table |
* |
* |
implied:Table |
| 447 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 448 |
Summary of Pension and Other Employee Obligations |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfPensionAndOtherEmployeeObligationsExplanatory |
| 449 |
Summary of Employee Benefit Costs |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfEmployeeBenefitsExpenseExplanatory |
| 450 |
Contributions to Defined Contribution Plans |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDefinedContributionPlanExplanatory |
| 451 |
Summary of Net Periodic Cost |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatory |
| 452 |
Summary of Net Defined Benefit Liability (Asset) |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory |
| 453 |
Actuarial Assumptions For Gratuity Plans |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfActuarialAssumptionsForGratuityPlansExplanatory |
| 454 |
Sensitivity of Defined Benefit Obligation to a Change in Each Significant Actuarial Assumption |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory |
| 455 |
Maturity Analysis of Defined Benefit Payments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory |
| 456 |
1051 - Disclosure - Provisions and accrued expenses (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsAndAccruedExpensesExplanatoryTables |
| 457 |
Implied Table |
Table |
* |
* |
implied:Table |
| 458 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 459 |
Summary of Provisions and Accrued Expenses |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutProvisionsAndAccruedExpensesExplanatory |
| 460 |
1052 - Disclosure - Deferred revenue (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredIncomeExplanatoryTables |
| 461 |
Implied Table |
Table |
* |
* |
implied:Table |
| 462 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 463 |
Summary of Deferred Revenue |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutDeferredRevenuesAndDeferredIncomeExplanatory |
| 464 |
1053 - Disclosure - Other liabilities (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherLiabilitiesExplanatoryTables |
| 465 |
Implied Table |
Table |
* |
* |
implied:Table |
| 466 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 467 |
Summary of Other Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutOtherLiabilitiesExplanatory |
| 468 |
1054 - Disclosure - Expenses by nature (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatoryTables |
| 469 |
Implied Table |
Table |
* |
* |
implied:Table |
| 470 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 471 |
Summary of Expenses by Nature |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutExpensesByNatureExplanatory |
| 472 |
1055 - Disclosure - Finance expense (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceCostExplanatoryTables |
| 473 |
Implied Table |
Table |
* |
* |
implied:Table |
| 474 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 475 |
Summary of Finance Expense |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutFinanceCostsExplanatory |
| 476 |
1056 - Disclosure - Other income, net (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExplanatoryTables |
| 477 |
Implied Table |
Table |
* |
* |
implied:Table |
| 478 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 479 |
Summary of Other Income, Net |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfDetailedInformationAboutOtherIncomeNetExplanatory |
| 480 |
1057 - Disclosure - Share-based payments (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTables |
| 481 |
Statement [Table] |
Table |
* |
* |
us-gaap:StatementTable |
| 482 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 483 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 484 |
RSUs dependent on non-market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnNonmarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 485 |
RSUs dependent on market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnMarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 486 |
RSUs related total shareholders return [member] |
Member |
|
|
wns:RestrictedShareUnitsRelatedTotalShareholdersReturnMember |
| 487 |
PSUs [member] |
Member |
|
|
wns:PerformanceShareUnits2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 488 |
Statement [Line Items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 489 |
Summary of Share-based Compensation Expense |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss |
| 490 |
Movements in Number of Options Outstanding under 2006 Incentive Award Plan and Related Weighted Average Exercise Prices |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory |
| 491 |
Movements in Number of Shares Outstanding under 2006 and 2016 Incentive Award Plan and Related Weighted Average Fair Values |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedOtherEquityInstrumentsGrantedDuringPeriodExplanatory |
| 492 |
1058 - Disclosure - Income taxes (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables |
| 493 |
Implied Table |
Table |
* |
* |
implied:Table |
| 494 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 495 |
Domestic and Foreign Source Component of Profit/(Loss) Before Income Taxes |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfProfitLossBeforeIncomeTaxExplanatory |
| 496 |
Provision for Income Taxes |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfIncomeTaxExpenseBenefitExplanatory |
| 497 |
Income Taxes Recognized Directly in Equity |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfIncomeTaxesRecognizedDirectlyInEquityExplanatory |
| 498 |
Income Taxes Recognized in Other Comprehensive Income |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfIncomeTaxesRecognizedInOtherComprehensiveIncomeExplanatory |
| 499 |
Reconciliation of Estimated Income Tax to Provision for Income Taxes |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfReconciliationOfEffectiveAndApplicableIncomeTaxExpensesExplanatory |
| 500 |
Summary of Deferred Taxes Arising from Temporary Differences and Unused Tax Losses |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory |
| 501 |
Deferred Tax Presented in Statement of Financial Position |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDeferredTaxesExplanatory |
| 502 |
1059 - Disclosure - Earnings per share (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables |
| 503 |
Implied Table |
Table |
* |
* |
implied:Table |
| 504 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 505 |
Computation of Basic and Diluted Earnings Per Share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:EarningsPerShareExplanatory |
| 506 |
1060 - Disclosure - Related party (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables |
| 507 |
Implied Table |
Table |
* |
* |
implied:Table |
| 508 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 509 |
List of the Company's Subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory |
| 510 |
Key Management Personnel Compensation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory |
| 511 |
1061 - Disclosure - Operating segments (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatoryTables |
| 512 |
Implied Table |
Table |
* |
* |
implied:Table |
| 513 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 514 |
Segment Results for Operating Segments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOperatingSegmentsExplanatory |
| 515 |
External Revenue and Non-current Assets (Excluding Goodwill and Intangible Assets) by Geographic Area |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeographicalAreasExplanatory |
| 516 |
1062 - Disclosure - Commitment and Contingencies (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryTables |
| 517 |
Implied Table |
Table |
* |
* |
implied:Table |
| 518 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 519 |
Future Minimum Lease Payments under Non-cancelable Operating Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory |
| 520 |
1063 - Disclosure - Additional capital disclosures (Tables) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatoryTables |
| 521 |
Implied Table |
Table |
* |
* |
implied:Table |
| 522 |
Text block1 [abstract] |
Abstract |
|
|
wns:TextBlock1Abstract |
| 523 |
Summary of Capital Structure |
Concept (Text Block (HTML)) |
For Period |
|
wns:DisclosureOfCapitalStructureExplanatory |
| 524 |
1064 - Disclosure - Summary of Significant Accounting Policies - Estimated Useful Lives of Property and Equipment (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesOfPropertyAndEquipment |
| 525 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 526 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 527 |
Property and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 528 |
Buildings [member] |
Member |
|
|
ifrs-full:BuildingsMember |
| 529 |
Computers and software [member] |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 530 |
Furniture, fixtures and office equipment [member] |
Member |
|
|
wns:FurnitureFixturesAndOfficeEquipmentMember |
| 531 |
Vehicles [member] |
Member |
|
|
ifrs-full:VehiclesMember |
| 532 |
Leasehold improvements [member] |
Member |
|
|
ifrs-full:LeaseholdImprovementsMember |
| 533 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 534 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 535 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 536 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 537 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 538 |
Estimated useful lives of property and equipment |
Concept (Text/String) |
For Period |
|
ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment |
| 539 |
1065 - Disclosure - Summary of Significant Accounting Policies - Estimated Useful Life of Intangible Assets (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesEstimatedUsefulLifeOfIntangibleAssets |
| 540 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 541 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 542 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 543 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 544 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 545 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 546 |
Trade names [member] |
Member |
|
|
wns:TradeNames1Member |
| 547 |
Technology [member] |
Member |
|
|
ifrs-full:TechnologybasedIntangibleAssetsMember |
| 548 |
Intellectual property and other rights [member] |
Member |
|
|
wns:IntellectualPropertyAndOtherRightsMember |
| 549 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 550 |
Service mark [member] |
Member |
|
|
wns:ServiceMarkMember |
| 551 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 552 |
Weighted average amortization period of definite lived intangible assets |
Concept (Text/String) |
For Period |
|
ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill |
| 553 |
1066 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation |
| 554 |
Implied Table |
Table |
* |
* |
implied:Table |
| 555 |
Disclosure of defined benefit plans [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansAbstract |
| 556 |
Approximate maximum amount per employee available for lump-sum payment to eligible employees in India |
Concept (Monetary) |
For Period |
Credit |
wns:DefinedBenefitRetirementPlanMaximumEmployeesBenefit |
| 557 |
1067 - Disclosure - Business Combinations - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureBusinessCombinationsAdditionalInformation |
| 558 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 559 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 560 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 561 |
Denali Sourcing Services Inc. [member] |
Member |
|
|
wns:DenaliSourcingServicesIncMember |
| 562 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 563 |
Telkom SA SOC Limited [member] |
Member |
|
|
wns:TelkomSASOCLimitedMember |
| 564 |
MTS HealthHelp Inc. [member] |
Member |
|
|
wns:MTSHealthHelpIncMember |
| 565 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 566 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 567 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 568 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 569 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 570 |
Percentage of ownership interests acquired |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfVotingEquityInterestsAcquired |
| 571 |
Purchase consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 572 |
Working capital adjustments |
Concept (Monetary) |
For Period |
Credit |
wns:IncreaseDecreaseInWorkingCapitalAdjustmentsInABusinessCombination |
| 573 |
Contingent consideration |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate |
| 574 |
Contingent consideration payable period |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfArrangementForContingentConsiderationArrangementsAndIndemnificationAssets |
| 575 |
Discount rate used for estimating fair value of contingent consideration liability |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfBasisForDeterminingAmountOfPaymentForContingentConsiderationArrangementsAndIndemnificationAssets |
| 576 |
Potential undiscounted amount of all future payments that could be required to make under the contingent consideration arrangement |
Concept (Monetary) |
As Of |
|
wns:EstimatedFinancialEffectContingentConsiderationInBusinessCombination |
| 577 |
Acquisition related costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 578 |
Payment for working capital adjustments |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentForWorkingCapitalAdjustments |
| 579 |
Reversal of contingent consideration in relation to acquisition |
Concept (Monetary) |
For Period |
Debit |
wns:ReversalOfContingentConsiderationInRelationToBusinessCombination |
| 580 |
Payment of contingent consideration |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentOfContingentConsiderationLiabilities |
| 581 |
Goodwill expected to be deductible for tax purposes |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GoodwillExpectedDeductibleForTaxPurposes |
| 582 |
Deferred consideration |
Concept (Monetary) |
As Of |
Credit |
wns:BusinessAcquisitionDeferredConsideration |
| 583 |
Payment of deferred consideration |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentOfDeferredConsiderationRelatedToBusinessAcquisition |
| 584 |
Release of restricted cash, held in escrow |
Concept (Monetary) |
For Period |
Debit |
wns:ReleaseOfRestrictedCashHeldInEscrow |
| 585 |
Purchase consideration in cash based on exchange rate on September 30, 2015 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashTransferred |
| 586 |
1068 - Disclosure - Business Combinations - Purchase Price Allocation to Assets Acquired and Liabilities Assumed of MTS HealthHelp Inc. (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureBusinessCombinationsPurchasePriceAllocationToAssetsAcquiredAndLiabilitiesAssumedOfMTSHealthHelpInc |
| 587 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 588 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 589 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 590 |
MTS HealthHelp Inc. [member] |
Member |
|
|
wns:MTSHealthHelpIncMember |
| 591 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 592 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 593 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 594 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 595 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 596 |
Service mark [member] |
Member |
|
|
wns:ServiceMarkMember |
| 597 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 598 |
Technology [member] |
Member |
|
|
ifrs-full:TechnologybasedIntangibleAssetsMember |
| 599 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 600 |
Cash |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate |
| 601 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
wns:TradeReceivablesRecognisedAsOfAcquisitionDate |
| 602 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
wns:UnbilledRevenueRecognisedAsOfAcquisitionDate |
| 603 |
Prepayments and other current assets |
Concept (Monetary) |
As Of |
Debit |
wns:PrepaymentsAndOtherCurrentAssetsRecognisedAsOfAcquisitionDate |
| 604 |
Property and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate |
| 605 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate |
| 606 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate |
| 607 |
Term loan |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate |
| 608 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 609 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 610 |
Deferred tax liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate |
| 611 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed |
| 612 |
Less: Purchase consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 613 |
Goodwill on acquisition |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 614 |
1069 - Disclosure - Business Combinations - Purchase Price Allocation to Assets Acquired and Liabilities Assumed of Denali Sourcing Services Inc. (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureBusinessCombinationsPurchasePriceAllocationToAssetsAcquiredAndLiabilitiesAssumedOfDenaliSourcingServicesInc |
| 615 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 616 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 617 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 618 |
Denali Sourcing Services Inc. [member] |
Member |
|
|
wns:DenaliSourcingServicesIncMember |
| 619 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 620 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 621 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 622 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 623 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 624 |
Trade names [member] |
Member |
|
|
wns:TradeNames1Member |
| 625 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 626 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 627 |
Cash |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate |
| 628 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
wns:TradeReceivablesRecognisedAsOfAcquisitionDate |
| 629 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
wns:UnbilledRevenueRecognisedAsOfAcquisitionDate |
| 630 |
Prepayments and other current assets |
Concept (Monetary) |
As Of |
Debit |
wns:PrepaymentsAndOtherCurrentAssetsRecognisedAsOfAcquisitionDate |
| 631 |
Property and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate |
| 632 |
Deferred tax asset |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssetsRecognisedAsOfAcquisitionDate |
| 633 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate |
| 634 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate |
| 635 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 636 |
Short-term line of credit |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate |
| 637 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 638 |
Deferred tax liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate |
| 639 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed |
| 640 |
Less: Purchase consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 641 |
Goodwill on acquisition |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 642 |
1070 - Disclosure - Business Combinations - Purchase Price Allocation to Assets Acquired and Liabilities Assumed of Value Edge Research Services Private Limited (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureBusinessCombinationsPurchasePriceAllocationToAssetsAcquiredAndLiabilitiesAssumedOfValueEdgeResearchServicesPrivateLimited |
| 643 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 644 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 645 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 646 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 647 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 648 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 649 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 650 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 651 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 652 |
Trade names [member] |
Member |
|
|
wns:TradeNames1Member |
| 653 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 654 |
Technology [member] |
Member |
|
|
ifrs-full:TechnologybasedIntangibleAssetsMember |
| 655 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 656 |
Cash |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate |
| 657 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
wns:TradeReceivablesRecognisedAsOfAcquisitionDate |
| 658 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
wns:UnbilledRevenueRecognisedAsOfAcquisitionDate |
| 659 |
Investments |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsRecognisedAsOfAcquisitionDate |
| 660 |
Prepayments and other current assets |
Concept (Monetary) |
As Of |
Debit |
wns:PrepaymentsAndOtherCurrentAssetsRecognisedAsOfAcquisitionDate |
| 661 |
Property and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate |
| 662 |
Deferred tax asset |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssetsRecognisedAsOfAcquisitionDate |
| 663 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate |
| 664 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate |
| 665 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 666 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate |
| 667 |
Deferred tax liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate |
| 668 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed |
| 669 |
Less: Purchase consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 670 |
Goodwill on acquisition |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 671 |
1071 - Disclosure - Business Combinations - Purchase Price Allocation to Assets Acquired and Liabilities Assumed of Telkom SA SOC LIMITED (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureBusinessCombinationsPurchasePriceAllocationToAssetsAcquiredAndLiabilitiesAssumedOfTelkomSASOCLIMITED |
| 672 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 673 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 674 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 675 |
Telkom SA SOC Limited [member] |
Member |
|
|
wns:TelkomSASOCLimitedMember |
| 676 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 677 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 678 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 679 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 680 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate |
| 681 |
Cash |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate |
| 682 |
Accrued leave liability |
Concept (Monetary) |
As Of |
Credit |
wns:AccruedLeaveLiabilityRecognisedAsOfAcquisitionDate |
| 683 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate |
| 684 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed |
| 685 |
Less: Purchase consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 686 |
Goodwill on acquisition |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 687 |
1072 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalents |
| 688 |
Implied Table |
Table |
* |
* |
implied:Table |
| 689 |
Cash and cash equivalents [abstract] |
Abstract |
|
|
ifrs-full:CashAndCashEquivalentsAbstract |
| 690 |
Cash and bank balances |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Cash |
| 691 |
Short term deposits with banks |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents |
| 692 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 693 |
1073 - Disclosure - Investments - Summary of Investments (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureInvestmentsSummaryOfInvestments |
| 694 |
Implied Table |
Table |
* |
* |
implied:Table |
| 695 |
Categories of financial assets [abstract] |
Abstract |
|
|
ifrs-full:CategoriesOfFinancialAssetsAbstract |
| 696 |
Investments in marketable securities and mutual funds |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInMarketableSecuritiesAndMutualFunds |
| 697 |
Investments in FMPs |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInFixedMaturityPlans |
| 698 |
Investment in fixed deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 699 |
Current investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 700 |
Non-current investment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssetsAvailableforsale |
| 701 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 702 |
1074 - Disclosure - Trade Receivables, Net - Summary of Trade Receivables (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureTradeReceivablesNetSummaryOfTradeReceivables |
| 703 |
Implied Table |
Table |
* |
* |
implied:Table |
| 704 |
Trade and other receivables [abstract] |
Abstract |
|
|
ifrs-full:TradeAndOtherReceivablesAbstract |
| 705 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 706 |
Less Allowances for doubtful trade receivable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 707 |
Total |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentTradeReceivablesNet |
| 708 |
1075 - Disclosure - Trade Receivables, Net - Movement in Allowances for Doubtful Trade Receivable (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureTradeReceivablesNetMovementInAllowancesForDoubtfulTradeReceivable |
| 709 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 710 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 711 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 712 |
Allowances for doubtful trade receivable [member] |
Member |
|
|
ifrs-full:AllowanceForCreditLossesMember |
| 713 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 714 |
Balance at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 715 |
Charged to operations |
Concept (Monetary) |
For Period |
|
ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets |
| 716 |
Write-offs, net of collections |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets |
| 717 |
Reversals |
Concept (Monetary) |
For Period |
|
ifrs-full:ReversalAllowanceAccountForCreditLossesOfFinancialAssets |
| 718 |
Translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets |
| 719 |
Balance at the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 720 |
1076 - Disclosure - Prepayments and Other Assets - Summary of Prepayment and Other Assets (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePrepaymentsAndOtherAssetsSummaryOfPrepaymentAndOtherAssets |
| 721 |
Implied Table |
Table |
* |
* |
implied:Table |
| 722 |
Assets [abstract] |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 723 |
Current: |
Abstract |
|
|
wns:CurrentPrepaymentsAndOtherCurrentAssetsAbstract |
| 724 |
Service tax and other tax receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax |
| 725 |
Deferred transition cost |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentDeferredTransitionCost |
| 726 |
Employee receivables |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentEmployeeReceivables |
| 727 |
Advances to suppliers |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAdvancesToSuppliers |
| 728 |
Prepaid expenses |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaidExpenses |
| 729 |
Restricted cash, held in escrow (Refer Note 4(c)) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentRestrictedCashAndCashEquivalents |
| 730 |
Other assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentAssets |
| 731 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 732 |
Non-current: |
Abstract |
|
|
wns:OtherNoncurrentAssetsAbstract |
| 733 |
Deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:LongtermDeposits |
| 734 |
Income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsNoncurrent |
| 735 |
Service tax and other tax receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax |
| 736 |
Deferred transition cost |
Concept (Monetary) |
As Of |
Debit |
wns:NonCurrentDeferredTransitionCost |
| 737 |
Restricted cash, held in escrow (Refer Note 4(c)) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRestrictedCashAndCashEquivalents |
| 738 |
Others assets |
Concept (Monetary) |
As Of |
Debit |
wns:OtherMiscellaneousNoncurrentAssets |
| 739 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentAssets |
| 740 |
1077 - Disclosure - Goodwill - Summary of the Carrying Value of Goodwill (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureGoodwillSummaryOfTheCarryingValueOfGoodwill |
| 741 |
Disclosure of reconciliation of changes in goodwill [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable |
| 742 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 743 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 744 |
Gross carrying value [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 745 |
Accumulated impairment [member] |
Member |
|
|
ifrs-full:AccumulatedImpairmentMember |
| 746 |
Disclosure of reconciliation of changes in goodwill [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems |
| 747 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 748 |
1078 - Disclosure - Goodwill - Summary of Movement in Goodwill by Reportable Segment (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureGoodwillSummaryOfMovementInGoodwillByReportableSegment |
| 749 |
Disclosure of reconciliation of changes in goodwill [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable |
| 750 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 751 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 752 |
Accumulated impairment [member] |
Member |
|
|
ifrs-full:AccumulatedImpairmentMember |
| 753 |
Gross carrying value [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 754 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 755 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 756 |
WNS global BPM [member] |
Member |
|
|
wns:WNSGlobalBPMMember |
| 757 |
WNS Auto Claims BPM [member] |
Member |
|
|
wns:WNSAutoClaimsBPMMember |
| 758 |
Disclosure of reconciliation of changes in goodwill [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems |
| 759 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 760 |
Goodwill arising on acquisitions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionalRecognitionGoodwill |
| 761 |
Impairment of goodwill recognized during the year |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 762 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill |
| 763 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 764 |
1079 - Disclosure - Goodwill - Carrying Value of Goodwill Allocated to Cash Generating Units (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureGoodwillCarryingValueOfGoodwillAllocatedToCashGeneratingUnits |
| 765 |
Disclosure of information for cash-generating units [table] |
Table |
* |
* |
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable |
| 766 |
Cash-generating units [axis] |
Axis |
|
|
ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis |
| 767 |
Entity's total for cash-generating units [member] |
Member |
|
|
ifrs-full:EntitysTotalForCashgeneratingUnitsMember |
| 768 |
WNS global BPM [member] |
Member |
|
|
wns:WNSGlobalBPMMember |
| 769 |
South Africa [member] |
Member |
|
|
wns:SouthAfricaCashGeneratingUnitMember |
| 770 |
Research & analytics [member] |
Member |
|
|
wns:ResearchAndAnalyticsMember |
| 771 |
Technology services [member] |
Member |
|
|
wns:TechnologyServicesMember |
| 772 |
WNS Auto Claims BPM [member] |
Member |
|
|
wns:WNSAutoClaimsBPMMember |
| 773 |
Finance and accounting [member] |
Member |
|
|
wns:FinanceAndAccountingMember |
| 774 |
Healthcare [member] |
Member |
|
|
wns:HealthCareMember |
| 775 |
Disclosure of information for cash-generating units [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems |
| 776 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 777 |
1080 - Disclosure - Goodwill - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureGoodwillAdditionalInformation |
| 778 |
Disclosure of reconciliation of changes in goodwill [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable |
| 779 |
Cash-generating units [axis] |
Axis |
|
|
ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis |
| 780 |
Entity's total for cash-generating units [member] |
Member |
|
|
ifrs-full:EntitysTotalForCashgeneratingUnitsMember |
| 781 |
WNS Auto Claims BPM [member] |
Member |
|
|
wns:WNSAutoClaimsBPMMember |
| 782 |
Growth rate [axis] |
Axis |
|
|
wns:GrowthRateAxis |
| 783 |
Growth rate [member] |
Member |
|
|
wns:GrowthRateMember |
| 784 |
Annual Growth Rate [member] |
Member |
|
|
wns:AnnualGrowthRateMember |
| 785 |
Perpetual Growth Rate [member] |
Member |
|
|
wns:PerpetualGrowthRateMember |
| 786 |
Disclosure of reconciliation of changes in goodwill [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems |
| 787 |
Estimated cash flows period |
Concept (Text/String) |
For Period |
|
ifrs-full:ExplanationOfPeriodOverWhichManagementHasProjectedCashFlows |
| 788 |
Impairment charge |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 789 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections |
| 790 |
Growth rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections |
| 791 |
Recoverable amount of cash generating units |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RecoverableAmountOfAssetOrCashgeneratingUnit |
| 792 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 793 |
Disposal cost |
Concept (Monetary) |
For Period |
Debit |
wns:DisposalCostOfCashgeneratingUnit |
| 794 |
1081 - Disclosure - Goodwill - Key Assumptions Used in Performing Impairment Test, by each CGU (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureGoodwillKeyAssumptionsUsedInPerformingImpairmentTestByEachCGU |
| 795 |
Disclosure of information for cash-generating units [table] |
Table |
* |
* |
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable |
| 796 |
Cash-generating units [axis] |
Axis |
|
|
ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis |
| 797 |
Entity's total for cash-generating units [member] |
Member |
|
|
ifrs-full:EntitysTotalForCashgeneratingUnitsMember |
| 798 |
WNS global BPM [member] |
Member |
|
|
wns:WNSGlobalBPMMember |
| 799 |
South Africa [member] |
Member |
|
|
wns:SouthAfricaCashGeneratingUnitMember |
| 800 |
Finance and accounting [member] |
Member |
|
|
wns:FinanceAndAccountingMember |
| 801 |
Research & analytics [member] |
Member |
|
|
wns:ResearchAndAnalyticsMember |
| 802 |
Healthcare [member] |
Member |
|
|
wns:HealthCareMember |
| 803 |
Technology services [member] |
Member |
|
|
wns:TechnologyServicesMember |
| 804 |
WNS Auto Claims BPM [member] |
Member |
|
|
wns:WNSAutoClaimsBPMMember |
| 805 |
Disclosure of information for cash-generating units [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems |
| 806 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections |
| 807 |
Perpetual growth rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections |
| 808 |
1082 - Disclosure - Intangible Assets - Change in Carrying Value of Intangible Assets (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIntangibleAssetsChangeInCarryingValueOfIntangibleAssets |
| 809 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 810 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 811 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 812 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 813 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 814 |
Intellectual property rights [member] |
Member |
|
|
wns:IntellectualProperty1Member |
| 815 |
Trade names [member] |
Member |
|
|
wns:TradeNames1Member |
| 816 |
Technology [member] |
Member |
|
|
ifrs-full:TechnologybasedIntangibleAssetsMember |
| 817 |
Leasehold benefits [member] |
Member |
|
|
wns:LeaseHoldBenefitsMember |
| 818 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 819 |
Service mark [member] |
Member |
|
|
wns:ServiceMarkMember |
| 820 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 821 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 822 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 823 |
Gross carrying value [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 824 |
Accumulated depreciation and amortization [member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 825 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 826 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 827 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 828 |
Amortization |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 829 |
On acquisition |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 830 |
Translation adjustments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill |
| 831 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 832 |
1083 - Disclosure - Intangible Assets - Estimated Remaining Weighted Average Amortization Periods for Definite Lived Intangible Assets (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIntangibleAssetsEstimatedRemainingWeightedAverageAmortizationPeriodsForDefiniteLivedIntangibleAssets |
| 833 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 834 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 835 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 836 |
Customer contracts [member] |
Member |
|
|
wns:CustomerContracts1Member |
| 837 |
Customer relationships [member] |
Member |
|
|
wns:CustomerRelationships1Member |
| 838 |
Covenant not-to-compete [member] |
Member |
|
|
wns:CovenantNotToCompeteMember |
| 839 |
Trade names [member] |
Member |
|
|
wns:TradeNames1Member |
| 840 |
Technology [member] |
Member |
|
|
ifrs-full:TechnologybasedIntangibleAssetsMember |
| 841 |
Intellectual property and other rights [member] |
Member |
|
|
wns:IntellectualPropertyAndOtherRightsMember |
| 842 |
Software [member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 843 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 844 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 845 |
Remaining weighted average [member] |
Member |
|
|
wns:RemainingWeightedAverageMember |
| 846 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 847 |
Estimated remaining weighted average amortization periods |
Concept (xbrli:durationItemType) |
For Period |
|
wns:RemainingWeightedAverageAmortizationPeriodIntangibleAssetsOtherThanGoodwill |
| 848 |
1084 - Disclosure - Intangible Assets - Estimated Annual Amortization Expense (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIntangibleAssetsEstimatedAnnualAmortizationExpense |
| 849 |
Disclosure of intangible assets with indefinite useful life [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsWithIndefiniteUsefulLifeTable |
| 850 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 851 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 852 |
2019 [member] |
Member |
|
|
wns:YearOneMember |
| 853 |
2020 [member] |
Member |
|
|
wns:YearTwoMember |
| 854 |
2021 [member] |
Member |
|
|
wns:YearThreeMember |
| 855 |
2022 [member] |
Member |
|
|
wns:YearFourMember |
| 856 |
2023 [member] |
Member |
|
|
wns:YearFiveMember |
| 857 |
More than 5 years [member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 858 |
Disclosure of intangible assets with indefinite useful life [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsWithIndefiniteUsefulLifeLineItems |
| 859 |
Estimated annual amortization expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AmortisationExpense |
| 860 |
1085 - Disclosure - Property and Equipment - Changes in Carrying Value of Property and Equipment (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePropertyAndEquipmentChangesInCarryingValueOfPropertyAndEquipment |
| 861 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 862 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 863 |
Property and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 864 |
Buildings [member] |
Member |
|
|
ifrs-full:BuildingsMember |
| 865 |
Computers and software [member] |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 866 |
Furniture, fixtures and office equipment [member] |
Member |
|
|
wns:FurnitureFixturesAndOfficeEquipmentMember |
| 867 |
Vehicles [member] |
Member |
|
|
ifrs-full:VehiclesMember |
| 868 |
Leasehold improvements [member] |
Member |
|
|
ifrs-full:LeaseholdImprovementsMember |
| 869 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 870 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 871 |
Gross carrying value [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 872 |
Accumulated depreciation and amortization [member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 873 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 874 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 875 |
Capital work-in-progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions |
| 876 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 877 |
Depreciation |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 878 |
On acquisition |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment |
| 879 |
Disposals/retirements |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment |
| 880 |
Translation adjustments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment |
| 881 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 882 |
1086 - Disclosure - Property and Equipment - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePropertyAndEquipmentAdditionalInformation |
| 883 |
Implied Table |
Table |
* |
* |
implied:Table |
| 884 |
Disclosure of detailed information about property, plant and equipment [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract |
| 885 |
Property and equipment pledged as collateral against borrowings |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity |
| 886 |
1087 - Disclosure - Loans and Borrowings - Summary of Long-term Loans and Borrowings (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureLoansAndBorrowingsSummaryOfLongtermLoansAndBorrowings |
| 887 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 888 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 889 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 890 |
Long term loan to finance acquisition of denali [member] |
Member |
|
|
wns:LongTermLoanToFinanceAcquisitionOfDenaliMember |
| 891 |
Long term loan to finance acquisition of health help [member] |
Member |
|
|
wns:LongTermLoanToFinanceAcquisitionOfHealthHelpMember |
| 892 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 893 |
Interest rate basis |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsInterestRateBasis |
| 894 |
Adjustment to interest rate basis |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsAdjustmentToInterestRateBasis |
| 895 |
Final maturity (fiscal year) |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsMaturity |
| 896 |
Total long term debt |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtBeforeNettingOffDebtIssuanceCost |
| 897 |
Unamortised debt issuance cost |
Concept (Monetary) |
As Of |
Credit |
wns:UmamortisedDebtIssueCost |
| 898 |
Total long term debt |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtAfterNettingOffDebtIssuanceCost |
| 899 |
Current portion of long term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 900 |
Long term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 901 |
1088 - Disclosure - Loans and Borrowings - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureLoansAndBorrowingsAdditionalInformation |
| 902 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 903 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 904 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 905 |
Line of credit [member] |
Member |
|
|
wns:ShortTermLineOfCreditMember |
| 906 |
Long term loan to finance acquisition of denali [member] |
Member |
|
|
wns:LongTermLoanToFinanceAcquisitionOfDenaliMember |
| 907 |
Long term loan to finance acquisition of health help [member] |
Member |
|
|
wns:LongTermLoanToFinanceAcquisitionOfHealthHelpMember |
| 908 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 909 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 910 |
WNS Global Services Private Limited [member] |
Member |
|
|
wns:WNSGlobalServicesPrivateLimitedMember |
| 911 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 912 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 913 |
UK [member] |
Member |
|
|
country:GB |
| 914 |
South Africa [member] |
Member |
|
|
country:ZA |
| 915 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 916 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 917 |
Fixed interest rate [member] |
Member |
|
|
ifrs-full:FixedInterestRateMember |
| 918 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 919 |
Term loan facility tenure |
Concept (xbrli:durationItemType) |
For Period |
|
wns:BorrowingsTerm |
| 920 |
Term loan facility amount |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:SecuredBankLoansReceived |
| 921 |
Interest rate basis |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsInterestRateBasis |
| 922 |
Adjustment to interest rate basis |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsAdjustmentToInterestRateBasis |
| 923 |
Repayment installment term |
Concept (Decimal) |
As Of |
|
wns:BorrowingsRepaymentInstallmentTerm |
| 924 |
First five repayment installments amount |
Concept (Monetary) |
As Of |
Debit |
wns:BorrowingsFirstFiveRepaymentInstallmentsAmount |
| 925 |
Sixth and final repayment installment |
Concept (Monetary) |
As Of |
Debit |
wns:BorrowingsSixthAndFinalRepaymentInstallmentAmount |
| 926 |
Fixed rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 927 |
Repayment of installment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities |
| 928 |
Repayment installment amount |
Concept (Monetary) |
As Of |
Debit |
wns:BorrowingsRepaymentInstallmentAmount |
| 929 |
Pledged trade receivables, other financial assets, property and equipment, intangible and other assets |
Concept (Monetary) |
As Of |
Debit |
wns:TradeReceivablesOtherFinancialAssetsAndPropertyEquipmentNoncashAssetsPledgedAsCollateral |
| 930 |
Line of credit |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:UndrawnBorrowingFacilities |
| 931 |
1089 - Disclosure - Financial Instruments - Carrying Value and Fair Value of Financial Instruments by Class (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsCarryingValueAndFairValueOfFinancialInstrumentsByClass |
| 932 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 933 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 934 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 935 |
Loans and receivables [member] |
Member |
|
|
ifrs-full:LoansAndReceivablesCategoryMember |
| 936 |
Financial assets at FVTPL [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 937 |
Derivative designated as cash flow hedges (carried at fair value) [member] |
Member |
|
|
ifrs-full:CashFlowHedgesMember |
| 938 |
Available for sale [member] |
Member |
|
|
ifrs-full:FinancialAssetsAvailableforsaleCategoryMember |
| 939 |
Financial assets at fair value, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueMember |
| 940 |
Categories of financial liabilities [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialLiabilitiesAxis |
| 941 |
Financial liabilities, category [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesCategoryMember |
| 942 |
Financial liabilities at FVTPL [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember |
| 943 |
Derivative designated as cash flow hedges (carried at fair value) [member] |
Member |
|
|
ifrs-full:CashFlowHedgesMember |
| 944 |
Financial liabilities at amortized cost [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember |
| 945 |
Financial liabilities at fair value, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtFairValueMember |
| 946 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 947 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 948 |
Investment in fixed deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 949 |
Investments in marketable securities and mutual funds |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInMarketableSecuritiesAndMutualFunds |
| 950 |
Investment in FMPs |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInFixedMaturityPlans |
| 951 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentTradeReceivablesNet |
| 952 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAccruedIncome |
| 953 |
Funds held for clients |
Concept (Monetary) |
As Of |
Debit |
wns:FundsHeldForClients1 |
| 954 |
Prepayments and other assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 955 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 956 |
Derivative assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DerivativeFinancialAssets |
| 957 |
Total carrying value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 958 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 959 |
Long term debt (includes current portion) |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtBeforeNettingOffDebtIssuanceCost |
| 960 |
Other employee obligations |
Concept (Monetary) |
As Of |
Credit |
wns:SalaryAndBonusAndOtherEmployeePayables |
| 961 |
Provision and accrued expenses |
Concept (Monetary) |
As Of |
Credit |
wns:CurrentProvisionsAndAccruedExpenses |
| 962 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 963 |
Derivative liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 964 |
Total carrying value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 965 |
1090 - Disclosure - Financial Instruments - Carrying Value and Fair Value of Financial Instruments by Class (Parenthetical) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsCarryingValueAndFairValueOfFinancialInstrumentsByClassParenthetical |
| 966 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 967 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 968 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 969 |
Non-financial instruments [member] |
Member |
|
|
wns:NonFinancialInstrumentsMember |
| 970 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 971 |
Prepayments and other assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 972 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentAssets |
| 973 |
Unamortised debt issuance cost |
Concept (Monetary) |
As Of |
Credit |
wns:UmamortisedDebtIssueCost |
| 974 |
Other employee obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisionsForEmployeeBenefits |
| 975 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 976 |
1091 - Disclosure - Financial Instruments - Financial Assets and Liabilities Subject to Offsetting, Enforceable Master Netting Arrangements or Similar Agreements (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsFinancialAssetsAndLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 977 |
Disclosure of offsetting of financial assets liabilities [Table] |
Table |
* |
* |
wns:DisclosureOfOffsettingOfFinancialAssetsLiabilitiesTable |
| 978 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 979 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 980 |
Derivatives [member] |
Member |
|
|
ifrs-full:DerivativesMember |
| 981 |
Disclosure of offsetting of financial assets liabilities [Line Items] |
LineItems |
|
|
wns:DisclosureOfOffsettingOfFinancialAssetsLiabilitiesLineItems |
| 982 |
Gross amounts of recognized financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 983 |
Gross amounts of recognized financial liabilities offset in the statement of financial position |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 984 |
Net amounts of financial assets presented in the statement of financial position |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition |
| 985 |
Related amount not set off in financial instruments, Financial instruments, financial assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets |
| 986 |
Related amount not set off in financial instruments, Cash collateral received, financial assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets |
| 987 |
Net Amount, financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 988 |
Gross amounts of recognized financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 989 |
Gross amounts of recognized financial assets offset in the statement of financial position |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 990 |
Net amounts of financial liabilities presented in the statement of financial position |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition |
| 991 |
Related amount not set off in financial instruments, Financial instruments, financial liabilities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities |
| 992 |
Related amount not set off in financial instruments, Cash collateral received, financial liabilities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities |
| 993 |
Net Amount, financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 994 |
1092 - Disclosure - Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasis |
| 995 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 996 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 997 |
Aggregated measurement [member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 998 |
Fair value on recurring basis [member] |
Member |
|
|
ifrs-full:RecurringFairValueMeasurementMember |
| 999 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1000 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1001 |
Level 1 [member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1002 |
Level 2 [member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 1003 |
Level 3 [member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1004 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 1005 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 1006 |
Financial assets at FVTPL [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 1007 |
Financial assets at fair value through other comprehensive income [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 1008 |
Financial liabilities at FVTPL [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember |
| 1009 |
Financial liabilities at fair value through other comprehensive income [member] |
Member |
|
|
wns:FinancialLiabilitiesMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 1010 |
Assets and liabilities [axis] |
Axis |
|
|
ifrs-full:AssetsAndLiabilitiesAxis |
| 1011 |
Assets and liabilities [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesMember |
| 1012 |
Foreign exchange contracts [member] |
Member |
|
|
wns:ForeignExchangeContractsMember |
| 1013 |
Interest rate swap contracts [member] |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1014 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1015 |
Derivative assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DerivativeFinancialAssets |
| 1016 |
Investments in marketable securities and mutual funds |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInMarketableSecuritiesAndMutualFunds |
| 1017 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 1018 |
Derivative liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 1019 |
Contingent consideration |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate |
| 1020 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 1021 |
Investment in FMPs |
Concept (Monetary) |
As Of |
Debit |
wns:InvestmentsInFixedMaturityPlans |
| 1022 |
1093 - Disclosure - Financial Instruments - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsAdditionalInformation |
| 1023 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1024 |
Assets and liabilities [axis] |
Axis |
|
|
ifrs-full:AssetsAndLiabilitiesAxis |
| 1025 |
Assets and liabilities [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesMember |
| 1026 |
Forward and option contracts [member] |
Member |
|
|
wns:ForwardContractsAndOptionContractsMember |
| 1027 |
Interest rate swap contracts [member] |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1028 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1029 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1030 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 1031 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 1032 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 1033 |
Interest rate swap contracts [member] |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1034 |
Currency [axis] |
Axis |
|
|
us-gaap:CurrencyAxis |
| 1035 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 1036 |
United Kingdom Pound Sterling [member] |
Member |
|
|
currency:GBP |
| 1037 |
Indian Rupees [member] |
Member |
|
|
currency:INR |
| 1038 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1039 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1040 |
Level 3 [member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1041 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 1042 |
Aggregated measurement [member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 1043 |
Non-recurring fair value measurement [member] |
Member |
|
|
ifrs-full:NonrecurringFairValueMeasurementMember |
| 1044 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1045 |
Discount rate used to determine fair value of the contingent consideration liability |
Concept (Percent) |
As Of |
|
wns:DiscountRateUsedToDetermineFairValue |
| 1046 |
Transfers between Level 1 and Level 2 fair value measurements, financial assets |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets |
| 1047 |
Transfers between Level 1 and Level 2 fair value measurements, financial liabilities |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities |
| 1048 |
Transfers between Level 2 and Level 1 fair value measurements, financial assets |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets |
| 1049 |
Transfers between Level 2 and Level 1 fair value measurements, financial liabilities |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities |
| 1050 |
Transfers into Level 3 fair value measurements, financial assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets |
| 1051 |
Transfers into Level 3 fair value measurements, financial liabilities |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:TransfersIntoLevel3OfFairValueHierarchyLiabilities |
| 1052 |
Transfers out of Level 3 fair value measurements, financial assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:TransfersOutOfLevel3OfFairValueHierarchyAssets |
| 1053 |
Transfers out of Level 3 fair value measurements, financial liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TransfersOutOfLevel3OfFairValueHierarchyLiabilities |
| 1054 |
Fair value measurement for Auto Claim BPM CGU |
Concept (Monetary) |
As Of |
Debit |
wns:RecoverableAmountOfAssetOrCashGeneratingUnitBeforeNettingOfCostOfDisposal |
| 1055 |
Disposal cost |
Concept (Monetary) |
For Period |
Debit |
wns:DisposalCostOfCashgeneratingUnit |
| 1056 |
Gain (loss) on cash flow hedges, expected to be reclassified from other comprehensive income into profit (loss) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedges |
| 1057 |
Reclassification period for cash flow hedges |
Concept (xbrli:durationItemType) |
For Period |
|
wns:ReclassificationPeriodForCashFlowHedges |
| 1058 |
Gain (loss) recognized due to discontinuation of cash flow hedge accounting |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnIneffectivenessOfCashFlowHedgesRecognisedInProfitOrLoss |
| 1059 |
Rate of appreciation or depreciation of the foreign currencies against the functional currency of the company |
Concept (Percent) |
As Of |
|
wns:RiskExposureAssociatedWithInstrumentsSharingCharacteristicPercentageChangeInRisk |
| 1060 |
Effect on statement of profit before tax from operating activities due to appreciation or depreciation of the foreign currencies against the functional currency of the company |
Concept (Monetary) |
As Of |
|
ifrs-full:RiskExposureAssociatedWithInstrumentsSharingCharacteristic |
| 1061 |
Outstanding swap agreement |
Concept (Monetary) |
As Of |
|
invest:DerivativeNotionalAmount |
| 1062 |
Unused lines of credit |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:UndrawnBorrowingFacilities |
| 1063 |
1094 - Disclosure - Financial Instruments - Movement in Contingent Consideration Categorized Under Level 3 Fair Value Measurement (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsMovementInContingentConsiderationCategorizedUnderLevel3FairValueMeasurement |
| 1064 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1065 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 1066 |
Aggregated measurement [member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 1067 |
Fair value on recurring basis [member] |
Member |
|
|
ifrs-full:RecurringFairValueMeasurementMember |
| 1068 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1069 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1070 |
Level 3 [member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1071 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1072 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate |
| 1073 |
Additions |
Concept (Monetary) |
For Period |
Credit |
wns:AdditionalInAmountRecognisedForContingentConsiderationAssumedInBusinessCombination |
| 1074 |
Payouts |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentOfContingentConsiderationLiabilities |
| 1075 |
Gain recognized in the consolidated statement of income |
Concept (Monetary) |
For Period |
Credit |
wns:IncreaseDecreaseInContingentConsiderationRecognizedInBusinessCombinationDueToGainLossRecognizedInTheConsolidatedStatementOfIncome |
| 1076 |
Finance expense recognized in the consolidated statement of income |
Concept (Monetary) |
For Period |
Credit |
wns:IncreaseDecreaseInContingentConsiderationRecognizedInBusinessCombinationDueToFinanceExpenseRecognizedInTheConsolidatedStatementOfIncome |
| 1077 |
Ending Balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate |
| 1078 |
1095 - Disclosure - Financial Instruments - Notional Values of Outstanding Foreign Exchange Forward Contracts, Foreign Exchange Option Contracts and Interest Rate Swap Contracts (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsNotionalValuesOfOutstandingForeignExchangeForwardContractsForeignExchangeOptionContractsAndInterestRateSwapContracts |
| 1079 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1080 |
Assets and liabilities [axis] |
Axis |
|
|
ifrs-full:AssetsAndLiabilitiesAxis |
| 1081 |
Assets and liabilities [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesMember |
| 1082 |
Forward contracts (sell) [member] |
Member |
|
|
ifrs-full:ForwardContractMember |
| 1083 |
Option contracts (sell) [member] |
Member |
|
|
ifrs-full:OptionContractMember |
| 1084 |
Interest rate swap contracts [member] |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1085 |
Currency [axis] |
Axis |
|
|
us-gaap:CurrencyAxis |
| 1086 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 1087 |
US Dollars [member] |
Member |
|
|
currency:USD |
| 1088 |
United Kingdom Pound Sterling [member] |
Member |
|
|
currency:GBP |
| 1089 |
Euro [member] |
Member |
|
|
currency:EUR |
| 1090 |
Australian Dollars [member] |
Member |
|
|
currency:AUD |
| 1091 |
Others Currencies [member] |
Member |
|
|
wns:OtherCurrenciesMember |
| 1092 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1093 |
Derivative, notional amount |
Concept (Monetary) |
As Of |
|
invest:DerivativeNotionalAmount |
| 1094 |
1096 - Disclosure - Financial Instruments - Gain/(Loss) Reclassified from Other Comprehensive Income into Consolidated Statement of Income (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsGainLossReclassifiedFromOtherComprehensiveIncomeIntoConsolidatedStatementOfIncome |
| 1095 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1096 |
Income Statement Location1 [Axis] |
Axis |
|
|
wns:IncomeStatementLocation1Axis |
| 1097 |
Income Statement Location1 [Domain] |
Member |
|
|
wns:IncomeStatementLocation1Domain |
| 1098 |
Revenue [member] |
Member |
|
|
wns:RevenueMember |
| 1099 |
Foreign exchange gain/(loss), net [member] |
Member |
|
|
wns:ForeignExchangeGainLossNetMember |
| 1100 |
Finance expense [member] |
Member |
|
|
wns:FinanceExpenseMember |
| 1101 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1102 |
Changes in fair value of cash flow hedges reclassified to profit/(loss) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax |
| 1103 |
Income tax related to amounts reclassified into consolidated statement of income |
Concept (Monetary) |
For Period |
Debit |
wns:IncomeTaxRelatingToReclassificationAdjustmentsOnCashFlowHedges |
| 1104 |
Total |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax |
| 1105 |
1097 - Disclosure - Financial Instruments - Foreign Currency Risk from Non-derivative Financial Instruments (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsForeignCurrencyRiskFromNonderivativeFinancialInstruments |
| 1106 |
Disclosure of nature and extent of risks arising from financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable |
| 1107 |
Currency [axis] |
Axis |
|
|
us-gaap:CurrencyAxis |
| 1108 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 1109 |
US Dollars [member] |
Member |
|
|
currency:USD |
| 1110 |
United Kingdom Pound Sterling [member] |
Member |
|
|
currency:GBP |
| 1111 |
Indian Rupees [member] |
Member |
|
|
currency:INR |
| 1112 |
Australian Dollars [member] |
Member |
|
|
currency:AUD |
| 1113 |
Euro [member] |
Member |
|
|
currency:EUR |
| 1114 |
Others Currencies [member] |
Member |
|
|
wns:OtherCurrenciesMember |
| 1115 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1116 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1117 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 1118 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems |
| 1119 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
wns:CashAndCashEquivalentsDenominatedInForeignCurrency |
| 1120 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
wns:TradeReceivablesDenominatedInForeignCurrency |
| 1121 |
Unbilled revenue |
Concept (Monetary) |
As Of |
Debit |
wns:UnbilledRevenueDenominatedInForeignCurrency |
| 1122 |
Prepayments and other current assets |
Concept (Monetary) |
As Of |
Debit |
wns:PrepaymentsAndOtherCurrentAssetsDenominatedInForeignCurrency |
| 1123 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
wns:OtherNoncurrentAssetsDenominatedInForeignCurrency |
| 1124 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
wns:TradeAndOtherCurrentPayablesToTradeSuppliersDenominatedInForeignCurrency |
| 1125 |
Provisions and accrued expenses |
Concept (Monetary) |
As Of |
Credit |
wns:ProvisionsAndAccruedExpensesDenominatedInForeignCurrency |
| 1126 |
Pension and other employee obligations |
Concept (Monetary) |
As Of |
Credit |
wns:ProvisionsForEmployeeBenefitsDenominatedInForeignCurrency |
| 1127 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
wns:OtherCurrentLiabilitiesDenominatedInForeignCurrency |
| 1128 |
Net assets/ (liabilities) |
Concept (Monetary) |
As Of |
Debit |
wns:NetAssetsLiabilitiesDenominatedInForeignCurrency |
| 1129 |
1098 - Disclosure - Financial Instruments - Percentage of Revenue Generated from Top Customer and Top Five Customers (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsPercentageOfRevenueGeneratedFromTopCustomerAndTopFiveCustomers |
| 1130 |
Disclosure of major customers [table] |
Table |
* |
* |
ifrs-full:DisclosureOfMajorCustomersTable |
| 1131 |
Major customers [axis] |
Axis |
|
|
ifrs-full:MajorCustomersAxis |
| 1132 |
Customers [member] |
Member |
|
|
ifrs-full:MajorCustomersMember |
| 1133 |
Top customer [Member] |
Member |
|
|
wns:TopCustomerMember |
| 1134 |
Top five customers [Member] |
Member |
|
|
wns:TopFiveCustomerMember |
| 1135 |
Disclosure of major customers [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfMajorCustomersLineItems |
| 1136 |
Percentage of revenue generated from customers |
Concept (Percent) |
For Period |
|
ifrs-full:PercentageOfEntitysRevenue |
| 1137 |
1099 - Disclosure - Financial Instruments - Age-wise Break-up of Trade Receivables, Net of Allowances that are Past Due Beyond Credit Period (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsAgewiseBreakupOfTradeReceivablesNetOfAllowancesThatArePastDueBeyondCreditPeriod |
| 1138 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1139 |
Impairment of financial assets [axis] |
Axis |
|
|
ifrs-full:ImpairmentOfFinancialAssetsAxis |
| 1140 |
Entity's total for impairment of financial assets [member] |
Member |
|
|
ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember |
| 1141 |
Neither past due nor impaired [member] |
Member |
|
|
ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember |
| 1142 |
Past due but not impaired [member] |
Member |
|
|
ifrs-full:FinancialAssetsPastDueButNotImpairedMember |
| 1143 |
Past due and impaired [member] |
Member |
|
|
ifrs-full:FinancialAssetsImpairedMember |
| 1144 |
Past due status [axis] |
Axis |
|
|
ifrs-full:PastDueStatusAxis |
| 1145 |
Past due status [member] |
Member |
|
|
ifrs-full:PastDueStatusMember |
| 1146 |
Past due 0-30 days [member] |
Member |
|
|
ifrs-full:NotLaterThanOneMonthMember |
| 1147 |
Past due 31-60 days [member] |
Member |
|
|
ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember |
| 1148 |
Past due 61-90 days [member] |
Member |
|
|
ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember |
| 1149 |
Past due over 90 days [member] |
Member |
|
|
ifrs-full:LaterThanThreeMonthsMember |
| 1150 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1151 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1152 |
Allowances for doubtful account receivables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 1153 |
Trade receivables, net of allowances for doubtful accounts receivable |
Concept (Monetary) |
As Of |
Debit |
wns:CurrentTradeReceivablesNet |
| 1154 |
1100 - Disclosure - Financial Instruments - Contractual Maturities of Financial Liabilities (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsContractualMaturitiesOfFinancialLiabilities |
| 1155 |
Disclosure of maturity analysis for financial liabilities [Table] |
Table |
* |
* |
wns:DisclosureOfMaturityAnalysisForFinancialLiabilitiesTable |
| 1156 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1157 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1158 |
Less than 1 Year [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1159 |
1-2 years [member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 1160 |
2-5 years [member] |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 1161 |
Disclosure of maturity analysis for financial liabilities [Line Items] |
LineItems |
|
|
wns:DisclosureOfMaturityAnalysisForFinancialLiabilitiesLineItems |
| 1162 |
Long term debt (includes current portion) |
Concept (Monetary) |
As Of |
Credit |
wns:LongTermDebtUndiscountedCashFlows |
| 1163 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows |
| 1164 |
Provision and accrued expenses |
Concept (Monetary) |
As Of |
Credit |
wns:ProvisionAndAccruedExpensesUndiscountedCashFlows |
| 1165 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
wns:OtherFinancialLiabilitiesUndiscountedCashFlows |
| 1166 |
Other employee obligations |
Concept (Monetary) |
As Of |
Credit |
wns:OtherEmployeeObligationsUndiscountedCashFlows |
| 1167 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows |
| 1168 |
Total |
Concept (Monetary) |
As Of |
Credit |
wns:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows |
| 1169 |
1101 - Disclosure - Financial Instruments - Contractual Maturities of Financial Liabilities (Parenthetical) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsContractualMaturitiesOfFinancialLiabilitiesParenthetical |
| 1170 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1171 |
Disclosure Of Maturity Analysis For Financial Liabilities [Abstract] |
Abstract |
|
|
wns:DisclosureOfMaturityAnalysisForFinancialLiabilitiesAbstract |
| 1172 |
Unamortised debt issuance cost |
Concept (Monetary) |
As Of |
Credit |
wns:UmamortisedDebtIssueCost |
| 1173 |
1102 - Disclosure - Financial Instruments - Summary of Net Cash Position (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfNetCashPosition |
| 1174 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1175 |
Disclosure of detailed information about financial instruments [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsAbstract |
| 1176 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 1177 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 1178 |
Long term debt (includes current portion) |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtBeforeNettingOffDebtIssuanceCost |
| 1179 |
Net cash position |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsHeldForManagingLiquidityRisk |
| 1180 |
1103 - Disclosure - Financial Instruments - Summary of Net Cash Position (Parenthetical) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfNetCashPositionParenthetical |
| 1181 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1182 |
Disclosure of detailed information about financial instruments [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsAbstract |
| 1183 |
Unamortized debt issuance cost |
Concept (Monetary) |
As Of |
Debit |
wns:UnamortizedDebtIssuanceCosts |
| 1184 |
1104 - Disclosure - Pension and Other Employee Obligations - Summary of Pension and Other Employee Obligations (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSummaryOfPensionAndOtherEmployeeObligations |
| 1185 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1186 |
Classes of employee benefits expense [abstract] |
Abstract |
|
|
ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract |
| 1187 |
Current: |
Abstract |
|
|
ifrs-full:MiscellaneousCurrentLiabilitiesAbstract |
| 1188 |
Salaries and bonus |
Concept (Monetary) |
As Of |
Credit |
wns:CurrentSalaryAndBonusPayable |
| 1189 |
Pension |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1190 |
Withholding taxes on salary and statutory payables |
Concept (Monetary) |
As Of |
Credit |
wns:WithholdingsCurrent |
| 1191 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisionsForEmployeeBenefits |
| 1192 |
Non-current: |
Abstract |
|
|
ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract |
| 1193 |
Pension and other obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisionsForEmployeeBenefits |
| 1194 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisionsForEmployeeBenefits |
| 1195 |
1105 - Disclosure - Pension and Other Employee Obligations - Summary of Employee Benefits Costs (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSummaryOfEmployeeBenefitsCosts |
| 1196 |
Disclosure of employee benefit expenses [Table] |
Table |
* |
* |
wns:DisclosureOfEmployeeBenefitExpensesTable |
| 1197 |
Income Statement Location1 [Axis] |
Axis |
|
|
wns:IncomeStatementLocation1Axis |
| 1198 |
Income Statement Location1 [Domain] |
Member |
|
|
wns:IncomeStatementLocation1Domain |
| 1199 |
Cost of revenue [member] |
Member |
|
|
wns:CostOfRevenueMember |
| 1200 |
Selling and marketing expenses [member] |
Member |
|
|
wns:SellingAndMarketingExpensesMember |
| 1201 |
General and administrative expenses [member] |
Member |
|
|
wns:GeneralAndAdministrativeExpensesMember |
| 1202 |
Disclosure of employee benefit expenses [Line Items] |
LineItems |
|
|
wns:DisclosureOfEmployeeBenefitExpensesLineItems |
| 1203 |
Salaries and bonus |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:WagesAndSalaries |
| 1204 |
Employee benefit plans: Defined contribution plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans |
| 1205 |
Employee benefit plans: Defined benefit plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1206 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1207 |
Employee benefit costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 1208 |
1106 - Disclosure - Pension and Other Employee Obligations - Contributions to Defined Contribution Plans (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsContributionsToDefinedContributionPlans |
| 1209 |
Disclosure of geographical areas [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 1210 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1211 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1212 |
India [member] |
Member |
|
|
country:IN |
| 1213 |
Philippines [member] |
Member |
|
|
country:PH |
| 1214 |
South Africa [member] |
Member |
|
|
country:ZA |
| 1215 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1216 |
UK [member] |
Member |
|
|
country:GB |
| 1217 |
USA [Member |
Member |
|
|
country:US |
| 1218 |
Disclosure of geographical areas [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 1219 |
Contributions to defined contribution plans |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans |
| 1220 |
1107 - Disclosure - Pension and Other Employee Obligations - Summary of Net Periodic Cost (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSummaryOfNetPeriodicCost |
| 1221 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1222 |
Disclosure of defined benefit plans [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansAbstract |
| 1223 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1224 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1225 |
Interest on the net defined benefit liability |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1226 |
Net gratuity cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1227 |
1108 - Disclosure - Pension and Other Employee Obligations - Summary of Net Defined Benefit Liability (Asset) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSummaryOfNetDefinedBenefitLiabilityAsset |
| 1228 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 1229 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1230 |
Net defined benefit liability (asset) [member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1231 |
Benefit obligations [member] |
Member |
|
|
ifrs-full:PresentValueOfDefinedBenefitObligationMember |
| 1232 |
Plan assets [member] |
Member |
|
|
ifrs-full:PlanAssetsMember |
| 1233 |
Present value of funded defined benefit obligation [member] |
Member |
|
|
wns:PresentValueOfFundedDefinedBenefitObligationMember |
| 1234 |
Present value of unfunded defined benefit obligation [member] |
Member |
|
|
wns:PresentValueOfUnfundedDefinedBenefitObligationMember |
| 1235 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 1236 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1237 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1238 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1239 |
Expected return on plan assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1240 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1241 |
Actuarial (loss) /gain |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset |
| 1242 |
Interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1243 |
Actual contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanNetDefinedBenefitLiabilityAsset |
| 1244 |
Business combinations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset |
| 1245 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1246 |
Actuarial (gain)/loss from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1247 |
Actuarial (gain)/loss from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1248 |
Actuarial (gain)/loss from actual experience compared to assumptions |
Concept (Monetary) |
For Period |
Debit |
wns:ActuarialGainsLossesArisingFromExperienceChangesNetDefinedBenefitLiabilityAsset |
| 1249 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1250 |
Accrued pension liability |
Abstract |
|
|
wns:AccruedPensionLiabilityAbstract |
| 1251 |
Current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1252 |
Non-current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1253 |
Net amount recognized |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan |
| 1254 |
Present value of defined benefit obligation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1255 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1256 |
Net surplus (deficit) in plan |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 1257 |
Weighted average duration of defined benefit obligation (both funded and unfunded) |
Concept (Decimal) |
For Period |
|
ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation |
| 1258 |
1109 - Disclosure - Pension and Other Employee Obligations - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsAdditionalInformation |
| 1259 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1260 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1261 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1262 |
India [member] |
Member |
|
|
country:IN |
| 1263 |
Philippines [member] |
Member |
|
|
country:PH |
| 1264 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1265 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1266 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1267 |
Discount rate [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1268 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 1269 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 1270 |
Unquoted government securities [member] |
Member |
|
|
wns:UnquotedGovernmentSecuritiesMember |
| 1271 |
Money market instruments [member] |
Member |
|
|
wns:MoneyMarketFunds1Member |
| 1272 |
Legal entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1273 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1274 |
Life Insurance Corporation of India [member] |
Member |
|
|
wns:LifeInsuranceCorporationOfIndiaMember |
| 1275 |
Aviva Life Insurance Company Private Limited [member] |
Member |
|
|
wns:AvivaLifeInsuranceCompanyPrivateLimitedMember |
| 1276 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1277 |
Net amount recognized relating to defined benefit plan |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan |
| 1278 |
Maximum limit of lump-sum gratuity payment |
Concept (Monetary) |
For Period |
Debit |
wns:MaximumLimitOfLumpsumGratuityPayment |
| 1279 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1280 |
Possible change in discount rates |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfMethodsAndAssumptionsUsedInPreparingSensitivityAnalysisForActuarialAssumptions |
| 1281 |
Amount of fund assets invested |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1282 |
Fund assets, investment percentage |
Concept (Percent) |
For Period |
|
wns:DefinedBenefitPlanTargetPlanInvestmentAllocationPercentage |
| 1283 |
Expected contributions for the year ending March 31, 2018 |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan |
| 1284 |
1110 - Disclosure - Pension and Other Employee Obligations - Actuarial Assumptions For Gratuity Plans (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsActuarialAssumptionsForGratuityPlans |
| 1285 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1286 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1287 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1288 |
India [member] |
Member |
|
|
country:IN |
| 1289 |
Philippines [member] |
Member |
|
|
country:PH |
| 1290 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1291 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1292 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1293 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1294 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1295 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1296 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 1297 |
Rate of increase in compensation level |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 1298 |
Expected rate of return on plan assets |
Concept (Percent) |
As Of |
|
wns:ActuarialAssumptionOfExpectedReturnOnPlanAssets |
| 1299 |
1111 - Disclosure - Pension and Other Employee Obligations - Sensitivity of Defined Benefit Obligation to a Change in Each Significant Actuarial Assumption (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSensitivityOfDefinedBenefitObligationToAChangeInEachSignificantActuarialAssumption |
| 1300 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 1301 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1302 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1303 |
India [member] |
Member |
|
|
country:IN |
| 1304 |
Philippines [member] |
Member |
|
|
country:PH |
| 1305 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1306 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1307 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1308 |
Discount rate [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1309 |
Salary escalation [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 1310 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 1311 |
Sensitivity of defined benefit obligation due to a possible increase in assumption |
Concept (Percent) |
As Of |
|
wns:PercentageIncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1312 |
Sensitivity of defined benefit obligation due to a possible decrease in assumption |
Concept (Percent) |
As Of |
|
wns:PercentageIncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1313 |
1112 - Disclosure - Pension and Other Employee Obligations - Sensitivity of Defined Benefit Obligation to a Change in Each Significant Actuarial Assumption (Parenthetical) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsSensitivityOfDefinedBenefitObligationToAChangeInEachSignificantActuarialAssumptionParenthetical |
| 1314 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 1315 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1316 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1317 |
Discount rate [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1318 |
Salary escalation [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 1319 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1320 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1321 |
India [member] |
Member |
|
|
country:IN |
| 1322 |
Philippines [member] |
Member |
|
|
country:PH |
| 1323 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1324 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 1325 |
Increase in assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 1326 |
Decrease in assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 1327 |
1113 - Disclosure - Pension and Other Employee Obligations - Maturity Analysis of Defined Benefit Payments (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosurePensionAndOtherEmployeeObligationsMaturityAnalysisOfDefinedBenefitPayments |
| 1328 |
Disclosure of Information About Maturity Profile of Defined Benefit Obligation [Table] |
Table |
* |
* |
wns:DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationTable |
| 1329 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1330 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1331 |
2019 [member] |
Member |
|
|
wns:YearOneMember |
| 1332 |
2020 [member] |
Member |
|
|
wns:YearTwoMember |
| 1333 |
2021 [member] |
Member |
|
|
wns:YearThreeMember |
| 1334 |
2022 [member] |
Member |
|
|
wns:YearFourMember |
| 1335 |
2023 [member] |
Member |
|
|
wns:YearFiveMember |
| 1336 |
More than 5 years [member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 1337 |
Disclosure of Information About Maturity Profile of Defined Benefit Obligation [Line Items] |
LineItems |
|
|
wns:DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationLineItems |
| 1338 |
Defined benefit payments |
Concept (Monetary) |
As Of |
Credit |
wns:DefinedBenefitObligationAtUndiscountedValue |
| 1339 |
1114 - Disclosure - Provisions and Accrued Expenses - Summary of Provisions and Accrued Expenses (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureProvisionsAndAccruedExpensesSummaryOfProvisionsAndAccruedExpenses |
| 1340 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1341 |
Current provisions and accrued expenses [abstract] |
Abstract |
|
|
wns:CurrentProvisionsAndAccruedExpensesAbstract |
| 1342 |
Accrued expenses |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AccrualsClassifiedAsCurrent |
| 1343 |
Total |
Concept (Monetary) |
As Of |
Credit |
wns:CurrentProvisionsAndAccruedExpenses |
| 1344 |
1115 - Disclosure - Deferred Revenue - Summary of Deferred Revenue (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureDeferredRevenueSummaryOfDeferredRevenue |
| 1345 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1346 |
Liabilities [abstract] |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 1347 |
Current |
Abstract |
|
|
ifrs-full:AccrualsAndDeferredIncomeClassifiedAsCurrentAbstract |
| 1348 |
Payments in advance of services |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentAdvances |
| 1349 |
Advance billings |
Concept (Monetary) |
As Of |
Credit |
wns:AdvanceBillingsDeferredRevenueCurrentLiabilities |
| 1350 |
Others |
Concept (Monetary) |
As Of |
Credit |
wns:OtherDeferredRevenueCurrentLiabilities |
| 1351 |
Total |
Concept (Monetary) |
As Of |
Credit |
wns:DeferredRevenueCurrent1 |
| 1352 |
Non-current |
Abstract |
|
|
ifrs-full:AccrualsAndDeferredIncomeClassifiedAsNoncurrentAbstract |
| 1353 |
Payments in advance of services |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentAdvances |
| 1354 |
Advance billings |
Concept (Monetary) |
As Of |
Credit |
wns:AdvanceBillingsDeferredRevenueNonCurrentLiabilities |
| 1355 |
Others |
Concept (Monetary) |
As Of |
Credit |
wns:OtherDeferredRevenueNonCurrentLiabilities |
| 1356 |
Total |
Concept (Monetary) |
As Of |
Credit |
wns:DeferredRevenueNonCurrent1 |
| 1357 |
1116 - Disclosure - Other Liabilities - Summary of Other Liabilities (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureOtherLiabilitiesSummaryOfOtherLiabilities |
| 1358 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1359 |
Liabilities [abstract] |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 1360 |
Current |
Abstract |
|
|
ifrs-full:MiscellaneousCurrentLiabilitiesAbstract |
| 1361 |
Withholding taxes and value added tax payables |
Concept (Monetary) |
As Of |
Credit |
wns:WithholdingTaxesAndValueAddedTaxPayablesCurrent |
| 1362 |
Contingent consideration (Refer note 4(a), 4(b) and 4(c)) |
Concept (Monetary) |
As Of |
Credit |
wns:ContingentConsiderationCurrent |
| 1363 |
Deferred rent |
Concept (Monetary) |
As Of |
Credit |
wns:CurrentDeferredLeaseLiabilities |
| 1364 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
wns:OtherMiscellaneousLiabilitiesCurrent |
| 1365 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 1366 |
Non-current |
Abstract |
|
|
ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract |
| 1367 |
Deferred rent |
Concept (Monetary) |
As Of |
Credit |
wns:NoncurrentDeferredLeaseLiabilities |
| 1368 |
Contingent consideration (Refer note 4(a), 4(b) and 4(c)) |
Concept (Monetary) |
As Of |
Credit |
wns:ContingentConsiderationNoncurrent |
| 1369 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
wns:OtherMiscellaneousLiabilitiesNoncurrent |
| 1370 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 1371 |
1117 - Disclosure - Share Capital - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureShareCapitalAdditionalInformation |
| 1372 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 1373 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1374 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1375 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 1376 |
Preference shares [member] |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 1377 |
American depositary shares [member] |
Member |
|
|
wns:AmericanDepositarySharesMember |
| 1378 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1379 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 1380 |
Treasury shares [member] |
Member |
|
|
ifrs-full:TreasurySharesMember |
| 1381 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1382 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1383 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1384 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1385 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 1386 |
Authorized share capital amount |
Concept (Monetary) |
For Period |
Credit |
wns:ShareCapitalAuthorizedAmount |
| 1387 |
Authorized share capital shares |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesAuthorised |
| 1388 |
Par value per share |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 1389 |
Number of shares outstanding |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 1390 |
Number of shares authorized to be repurchased |
Concept (Shares) |
As Of |
|
wns:NumberOfSharesApprovedForRepurchase |
| 1391 |
Price for repurchase of shares |
Concept (Monetary) |
For Period |
|
wns:SharePrice1 |
| 1392 |
Number of ordinary shares represented by 1 American Depositary Shares |
Concept (Shares) |
As Of |
|
wns:NumberOfSharesRepresentedByIssuedAmericanDepositaryShares |
| 1393 |
Number of shares repurchased |
Concept (Shares) |
For Period |
|
wns:NumberOfSharesRepurchased |
| 1394 |
Shares repurchased value |
Concept (Monetary) |
For Period |
Debit |
wns:ShareRepurchasedAmount |
| 1395 |
Shares repurchased transaction costs |
Concept (Monetary) |
For Period |
Credit |
wns:TransactionCostForRepurchasesOfShares |
| 1396 |
Shares repurchased cancellation fees |
Concept (Monetary) |
For Period |
Credit |
wns:CancellationFeesForRepurchasesOfShares |
| 1397 |
Duration of share repurchase program |
Concept (xbrli:durationItemType) |
For Period |
|
wns:StockRepurchaseProgramPeriod |
| 1398 |
1118 - Disclosure - Expenses by Nature - Summary of Expenses by Nature (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureExpensesByNatureSummaryOfExpensesByNature |
| 1399 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1400 |
Expenses by nature [abstract] |
Abstract |
|
|
ifrs-full:ExpenseByNatureAbstract |
| 1401 |
Employee cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 1402 |
Repair payments |
Concept (Monetary) |
For Period |
Debit |
wns:RepairPaymentsInAutoclaimsBPM |
| 1403 |
Facilities cost |
Concept (Monetary) |
For Period |
Debit |
wns:FacilitiesCost |
| 1404 |
Depreciation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationExpense |
| 1405 |
Legal and professional expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProfessionalFeesExpense |
| 1406 |
Travel expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TravelExpense |
| 1407 |
Others |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByNature |
| 1408 |
Total cost of revenue, selling and marketing and general and administrative expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseByNature |
| 1409 |
1119 - Disclosure - Finance Expense - Summary of Finance Expense (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureFinanceExpenseSummaryOfFinanceExpense |
| 1410 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1411 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 1412 |
Interest expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 1413 |
Interest rate swaps |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:LossesOnChangeInFairValueOfDerivatives |
| 1414 |
Debt issue cost |
Concept (Monetary) |
For Period |
Debit |
wns:DebtIssueCost |
| 1415 |
Total |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 1416 |
1120 - Disclosure - Other Income, Net - Summary of Other Income, Net (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureOtherIncomeNetSummaryOfOtherIncomeNet |
| 1417 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1418 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 1419 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromInterest |
| 1420 |
Dividend income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromDividends |
| 1421 |
Net gain arising on financial assets designated as FVTPL |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss |
| 1422 |
Others, net |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherFinanceIncome |
| 1423 |
Total |
Concept (Monetary) |
For Period |
Credit |
wns:OtherNonOperatingIncome1 |
| 1424 |
1121 - Disclosure - Share-based Payments - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsAdditionalInformation |
| 1425 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1426 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1427 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1428 |
2006 Incentive award plan [member] |
Member |
|
|
wns:TwoThousandAndSixIncentiveAwardPlanMember |
| 1429 |
Share-based options [member] |
Member |
|
|
wns:ShareBasedOptionsMember |
| 1430 |
Restricted share units (RSUs) [member] |
Member |
|
|
wns:RestrictedShareUnitsMember |
| 1431 |
RSUs dependent on non-market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnNonmarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1432 |
RSUs dependent on market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnMarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1433 |
RSUs related total shareholders return [member] |
Member |
|
|
wns:RsusRelatedTotalShareholdersReturnMember |
| 1434 |
PSUs [member] |
Member |
|
|
wns:PerformanceShareUnits2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1435 |
RSUs BBBEE Program In South Africa [member] |
Member |
|
|
wns:RSUsBbbeeProgramInSouthAfricaMember |
| 1436 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1437 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1438 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1439 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1440 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1441 |
Share-based incentive plan - term |
Concept (xbrli:durationItemType) |
For Period |
|
wns:SharebasedIncentivePlansTerms |
| 1442 |
Vesting period |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement |
| 1443 |
Number of shares available for future grants |
Concept (Shares) |
For Period |
|
wns:SharesReservedForIssueUnderOptionsAndRSUs |
| 1444 |
Number of shares issued upon exercise of share options and RSUs |
Concept (Shares) |
For Period |
|
wns:NumberOfSharesIssuedUponExerciseOfOptionsRSUs |
| 1445 |
Aggregate intrinsic value of options exercised |
Concept (Monetary) |
For Period |
Debit |
wns:ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisedInPeriodAggregateIntrinsicValue |
| 1446 |
Total grant date fair value of options vested |
Concept (Shares) |
As Of |
|
wns:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedGrantDateFairValue |
| 1447 |
Total cash received from option exercised |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromExerciseOfOptions |
| 1448 |
Number of options granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 1449 |
Weighted average share price of options exercised |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise |
| 1450 |
Exercise price per options outstanding |
Concept (Monetary) |
As Of |
|
ifrs-full:ExercisePriceOfOutstandingShareOptions |
| 1451 |
Weighted average remaining contractual term |
Concept (Decimal) |
As Of |
|
ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions |
| 1452 |
Unrecognized compensation cost related to unvested other equity instruments |
Concept (Monetary) |
As Of |
Debit |
wns:UnrecognizedCompensationCostOfOtherEquityInstrumentsUnvested |
| 1453 |
Expected weighted average period for recognition of compensation cost other equity instruments |
Concept (Decimal) |
For Period |
|
wns:ExpectedWeightedAveragePeriodForRecognitionOfCompensationCostOfOtherEquityInstrumentsUnvested |
| 1454 |
Weighted average grant date fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted |
| 1455 |
Aggregate intrinsic value of share units exercised |
Concept (Monetary) |
For Period |
Debit |
wns:SharebasedCompensationArrangementBySharebasedPaymenAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised |
| 1456 |
Total grant date fair value of units vested |
Concept (Monetary) |
For Period |
Debit |
wns:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodGrantDateFairValue |
| 1457 |
Weighted average share price of share units exercised other equity instruments |
Concept (Share) |
For Period |
|
wns:WeightedAverageSharePriceOfOtherEquityInstrumentsExercised |
| 1458 |
Additional cost as a result of modification in respect of modified share awards |
Concept (Monetary) |
For Period |
|
ifrs-full:IncrementalFairValueGrantedModifiedSharebasedPaymentArrangements |
| 1459 |
Incremental cost recognized in the current year in respect of such modified RSUs |
Concept (Monetary) |
For Period |
|
wns:IncrementalFairValueGrantedModifiedSharebasedPaymentArrangementsRecognisedDuringTheYear |
| 1460 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1461 |
Expected weighted average period for recognition of compensation cost other equity instruments |
Concept (Decimal) |
For Period |
|
wns:ExpectedWeightedAveragePeriodForRecognitionOfCompensationCostOfOtherEquityInstrumentsUnvestedInSharebasedPaymentArrangement |
| 1462 |
Number of RSUs granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1463 |
Unamortized Share based compensation |
Concept (Monetary) |
As Of |
Credit |
wns:ShareBasedCompensationExpenseToBeAmortized |
| 1464 |
1122 - Disclosure - Share-based Payments - Summary of Share-based Compensation Expense (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsSummaryOfSharebasedCompensationExpense |
| 1465 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1466 |
Income Statement Location1 [Axis] |
Axis |
|
|
wns:IncomeStatementLocation1Axis |
| 1467 |
Income Statement Location1 [Domain] |
Member |
|
|
wns:IncomeStatementLocation1Domain |
| 1468 |
Cost of revenue [member] |
Member |
|
|
wns:CostOfRevenueMember |
| 1469 |
Selling and marketing expenses [member] |
Member |
|
|
wns:SellingAndMarketingExpensesMember |
| 1470 |
General and administrative expenses [member] |
Member |
|
|
wns:GeneralAndAdministrativeExpensesMember |
| 1471 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1472 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1473 |
1123 - Disclosure - Share-based Payments - Movements in Number of Options Outstanding under 2006 Incentive Award Plan and Related Weighted Average Exercise Prices (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsMovementsInNumberOfOptionsOutstandingUnder2006IncentiveAwardPlanAndRelatedWeightedAverageExercisePrices |
| 1474 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1475 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1476 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1477 |
2006 Incentive award plan [member] |
Member |
|
|
wns:TwoThousandAndSixIncentiveAwardPlanMember |
| 1478 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1479 |
Beginning balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 1480 |
Exercised |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 1481 |
Lapsed |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 1482 |
Ending balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 1483 |
Weighted average exercise price, Beginning balance |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 1484 |
Options exercisable |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1485 |
Weighted average exercise price, Exercised |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 1486 |
Weighted average exercise price, Lapsed |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 1487 |
Weighted average exercise price, Ending balance |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 1488 |
Aggregate intrinsic value, Beginning balance |
Concept (Monetary) |
As Of |
|
wns:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingAggregateIntrinsicValue |
| 1489 |
Weighted average exercise price, Options exercisable |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1490 |
Aggregate intrinsic value, Ending balance |
Concept (Monetary) |
As Of |
|
wns:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingAggregateIntrinsicValue |
| 1491 |
Weighted average remaining contract term (in years) |
Concept (Decimal) |
As Of |
|
ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions |
| 1492 |
Aggregate intrinsic value, Options exercisable |
Concept (Monetary) |
As Of |
|
wns:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateIntrinsicValue |
| 1493 |
Weighted average remaining contract term (in years), Options exercisable |
Concept (Decimal) |
As Of |
|
wns:WeightedAverageRemainingContractualLifeOfShareOptionsExercisable |
| 1494 |
1124 - Disclosure - Share-based Payments - Movements in Number of Restricted Share Units Dependent on Non-market Performance Condition Outstanding under 2006 and 2016 Incentive Award Plan and Related Weighted Average Fair Values (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsMovementsInNumberOfRestrictedShareUnitsDependentOnNonmarketPerformanceConditionOutstandingUnder2006And2016IncentiveAwardPlanAndRelatedWeightedAverageFairValues |
| 1495 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1496 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1497 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1498 |
RSUs dependent on non-market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnNonmarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1499 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1500 |
Beginning balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1501 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1502 |
Exercised |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1503 |
Forfeited |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1504 |
Lapsed |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsLapsedInSharebasedPaymentArrangement |
| 1505 |
Ending balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1506 |
Weighted average fair value, Beginning balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1507 |
Exercisable |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1508 |
Weighted average fair value, Granted |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement |
| 1509 |
Weighted average fair value, Exercised |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1510 |
Weighted average fair value, Forfeited |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1511 |
Weighted average fair value, Lapsed |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement |
| 1512 |
Weighted average fair value, Ending balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1513 |
Weighted average fair value, exercisable |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1514 |
Weighted average remaining contract term (in years) |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm |
| 1515 |
Weighted average remaining contract term (in years), exercisable |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsExercisableWeightedAverageRemainingContractualTerm |
| 1516 |
Aggregate intrinsic value |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueOutstanding |
| 1517 |
Aggregate intrinsic value, exercisable |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueExercisable |
| 1518 |
1125 - Disclosure - Share-based Payments - Movements in Number of Restricted Share Units Dependent on Market Performance Condition Outstanding under 2006 and 2016 Incentive Award Plan and Related Weighted Average Fair Values (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsMovementsInNumberOfRestrictedShareUnitsDependentOnMarketPerformanceConditionOutstandingUnder2006And2016IncentiveAwardPlanAndRelatedWeightedAverageFairValues |
| 1519 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1520 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1521 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1522 |
RSUs dependent on market performance condition [member] |
Member |
|
|
wns:RestrictedShareUnitsDependentOnMarketPerformanceConditionOutstandingUnderThe2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1523 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1524 |
Beginning balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1525 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1526 |
Exercised |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1527 |
Forfeited |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1528 |
Lapsed |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsLapsedInSharebasedPaymentArrangement |
| 1529 |
Ending balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1530 |
Weighted average fair value, Beginning balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1531 |
Exercisable |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1532 |
Weighted average fair value, Granted |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement |
| 1533 |
Weighted average fair value, Ending balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1534 |
Weighted average remaining contract term (in years) |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm |
| 1535 |
Weighted average remaining contract term (in years), exercisable |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsExercisableWeightedAverageRemainingContractualTerm |
| 1536 |
Aggregate intrinsic value |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueOutstanding |
| 1537 |
Aggregate intrinsic value, exercisable |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueExercisable |
| 1538 |
1126 - Disclosure - Share-based Payments - Summary of RSUs related to Total Shareholder's Return ('TSR') (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsSummaryOfRSUsRelatedToTotalShareholdersReturnTSR |
| 1539 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1540 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1541 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1542 |
RSUs related total shareholders return [member] |
Member |
|
|
wns:RsusRelatedTotalShareholdersReturnMember |
| 1543 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1544 |
Beginning balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1545 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1546 |
Exercised |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1547 |
Forfeited |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1548 |
Lapsed |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsLapsedInSharebasedPaymentArrangement |
| 1549 |
Ending balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1550 |
Exercisable |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1551 |
Weighted average fair value, Beginning balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1552 |
Weighted average fair value, Granted |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement |
| 1553 |
Weighted average fair value, Exercised |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1554 |
Weighted average fair value, Forfeited |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1555 |
Weighted average fair value, Lapsed |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement |
| 1556 |
Weighted average fair value, Ending balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1557 |
Weighted average fair value, exercisable |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1558 |
Weighted average remaining contract term (in years) |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm |
| 1559 |
Weighted average remaining contract term (in years), exercisable |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsExercisableWeightedAverageRemainingContractualTerm |
| 1560 |
Aggregate intrinsic value |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueOutstanding |
| 1561 |
Aggregate intrinsic value, exercisable |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueExercisable |
| 1562 |
1127 - Disclosure - Share-based Payments - Movements in Number of Performance Share Units Outstanding under 2006 and 2016 Incentive Award Plan and Related Weighted Average Fair Values (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureSharebasedPaymentsMovementsInNumberOfPerformanceShareUnitsOutstandingUnder2006And2016IncentiveAwardPlanAndRelatedWeightedAverageFairValues |
| 1563 |
Disclosure of terms and conditions of share-based payment arrangement [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1564 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1565 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1566 |
PSUs [member] |
Member |
|
|
wns:PerformanceShareUnits2006IncentiveAwardPlanAndThe2016IncentiveAwardPlanMember |
| 1567 |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1568 |
Beginning balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1569 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1570 |
Exercised |
Concept (Decimal) |
For Period |
|
wns:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1571 |
Forfeited |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1572 |
Ending balance |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1573 |
Weighted average fair value, Beginning balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1574 |
Exercisable |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1575 |
Weighted average fair value, Granted |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement |
| 1576 |
Weighted average fair value, Exercised |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement |
| 1577 |
Weighted average fair value, Forfeited |
Concept (Monetary) |
For Period |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1578 |
Weighted average fair value, Ending balance |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1579 |
Weighted average fair value, exercisable |
Concept (Monetary) |
As Of |
|
wns:WeightedAverageFairValueOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement |
| 1580 |
Weighted average remaining contract term (in years) |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm |
| 1581 |
Weighted average remaining contract term (in years), exercisable |
Concept (Decimal) |
For Period |
|
wns:OtherEquityInstrumentsExercisableWeightedAverageRemainingContractualTerm |
| 1582 |
Aggregate intrinsic value |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueOutstanding |
| 1583 |
Aggregate intrinsic value, exercisable |
Concept (Monetary) |
As Of |
|
wns:OtherEquityInstrumentsAggregateIntrinsicValueExercisable |
| 1584 |
1128 - Disclosure - Income Taxes - Domestic and Foreign Source Component of Profit/(Loss) Before Income Taxes (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesDomesticAndForeignSourceComponentOfProfitLossBeforeIncomeTaxes |
| 1585 |
Disclosure of income taxes [Table] |
Table |
* |
* |
wns:DisclosureOfIncomeTaxesTable |
| 1586 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1587 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1588 |
Domestic [member] |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 1589 |
Foreign [member] |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 1590 |
Disclosure of income taxes [Line Items] |
LineItems |
|
|
wns:DisclosureOfIncomeTaxesLineItems |
| 1591 |
Profit before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1592 |
1129 - Disclosure - Income Taxes - Provision for Income Taxes (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesProvisionForIncomeTaxes |
| 1593 |
Disclosure of income taxes [Table] |
Table |
* |
* |
wns:DisclosureOfIncomeTaxesTable |
| 1594 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1595 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1596 |
Foreign [member] |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 1597 |
Disclosure of income taxes [Line Items] |
LineItems |
|
|
wns:DisclosureOfIncomeTaxesLineItems |
| 1598 |
Current taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 1599 |
Deferred taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncome |
| 1600 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1601 |
1130 - Disclosure - Income Tax - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxAdditionalInformation |
| 1602 |
Disclosure of income taxes [Table] |
Table |
* |
* |
wns:DisclosureOfIncomeTaxesTable |
| 1603 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1604 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1605 |
Domestic [member] |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 1606 |
Pune Mumbai and Chennai in India [member] |
Member |
|
|
wns:PuneMumbaiAndChennaiInIndiaMember |
| 1607 |
New Pune and Gurgaon in India [member] |
Member |
|
|
wns:NewPuneAndGurgaonInIndiaMember |
| 1608 |
India [member] |
Member |
|
|
country:IN |
| 1609 |
Costa Rica [Member] |
Member |
|
|
country:CR |
| 1610 |
Iloilo and Alabang, Philippines [member] |
Member |
|
|
wns:IloiloAndAlabangPhilippinesMember |
| 1611 |
Sri Lanka [member] |
Member |
|
|
country:LK |
| 1612 |
Alabang Philippines [member] |
Member |
|
|
wns:AlabangPhilippinesMember |
| 1613 |
USA [Member |
Member |
|
|
country:US |
| 1614 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 1615 |
Contingent liabilities [member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 1616 |
Legal proceedings contingent liability [member] |
Member |
|
|
ifrs-full:LegalProceedingsContingentLiabilityMember |
| 1617 |
Income tax authority 1 [axis] |
Axis |
|
|
wns:IncomeTaxAuthority1Axis |
| 1618 |
Income Tax Authority 1 [Domain] |
Member |
|
|
wns:IncomeTaxAuthority1Domain |
| 1619 |
US [member] |
Member |
|
|
wns:UsMember |
| 1620 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 1621 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 1622 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 1623 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 1624 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 1625 |
Changes in tax rates or tax laws enacted or announced [member] |
Member |
|
|
ifrs-full:ChangesInTaxRatesOrTaxLawsEnactedOrAnnouncedMember |
| 1626 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1627 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1628 |
2016 [member] |
Member |
|
|
wns:TwoThousandSixteenMember |
| 1629 |
2017 - 2026 [member] |
Member |
|
|
wns:TwoThousandSeventeenToTwoThousandTwentySixMember |
| 1630 |
Until 2019 [member] |
Member |
|
|
wns:TwoThousandNineteenMember |
| 1631 |
2020 - 2029 [member] |
Member |
|
|
wns:TwoThousandTwentyToTwoThousandTwentyNineMember |
| 1632 |
2018 - 2021 [member] |
Member |
|
|
wns:TwoThousandEighteenToTwoThousandTwentyOneMember |
| 1633 |
Until 2021 [member] |
Member |
|
|
wns:TwoThousandTwentyOneMember |
| 1634 |
Until 2022 [member] |
Member |
|
|
wns:TwoThousandAndTwentyTwoMember |
| 1635 |
2023 - 2032 [member] |
Member |
|
|
wns:TwoThousandTwentyThreeToTwoThousandThirtyTwoMember |
| 1636 |
Disclosure of income taxes [Line Items] |
LineItems |
|
|
wns:DisclosureOfIncomeTaxesLineItems |
| 1637 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1638 |
Corporate tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:ApplicableTaxRate |
| 1639 |
Deferred tax liability derecognized |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 1640 |
Percentage of income tax exemption |
Concept (Percent) |
For Period |
|
wns:PercentageOfIncomeTaxExemption |
| 1641 |
Percentage of minimum alternative tax |
Concept (Percent) |
For Period |
|
wns:PercentageOfMinimumAlternativeTax |
| 1642 |
Tax effect from change in tax rate |
Concept (Monetary) |
For Period |
Debit |
wns:IncomeTaxExpenseBenefit1 |
| 1643 |
Reduction in effective tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:TaxRateEffectFromChangeInTaxRate |
| 1644 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Credit |
wns:ImpactOfChangeInCorporationTaxRate |
| 1645 |
Decrease in basic earnings loss per share |
Concept (Share) |
For Period |
|
wns:DecreaseInBasicEarningsLossPerShareIfTaxExemptionNotAvailable |
| 1646 |
Decrease in diluted earnings loss per share |
Concept (Share) |
For Period |
|
wns:DecreaseInDilutedEarningsLossPerShareIfTaxExemptionNotAvailable |
| 1647 |
Unused tax losses for which no deferred tax asset recognized |
Concept (Monetary) |
As Of |
|
ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised |
| 1648 |
Temporary difference on which deferred tax liability has not been recognized amounts |
Concept (Monetary) |
As Of |
|
ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures |
| 1649 |
Estimated amount of additional taxes |
Concept (Monetary) |
For Period |
Debit |
wns:EstimatedAmountOfAdditionalIncomeTaxes |
| 1650 |
Estimated amount of additional taxes, interest |
Concept (Monetary) |
As Of |
Credit |
wns:EstimatedAmountOfAdditionalIncomeTaxesInterest |
| 1651 |
Income tax reserve |
Concept (Monetary) |
For Period |
Debit |
wns:IncomeTaxReserve |
| 1652 |
Deposit of disputed amounts with tax authorities |
Concept (Monetary) |
For Period |
Debit |
wns:DepositOfDisputedAmountsWithTaxAuthorities |
| 1653 |
Payment of service tax and related penalty |
Concept (Monetary) |
For Period |
Credit |
wns:PaymentOfServiceTaxAndRelatedPenalty |
| 1654 |
1131 - Disclosure - Income Taxes - Income Taxes Recognized Directly in Equity (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesIncomeTaxesRecognizedDirectlyInEquity |
| 1655 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1656 |
Current and deferred tax relating to items charged or credited directly to equity [abstract] |
Abstract |
|
|
ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquityAbstract |
| 1657 |
Excess tax deductions related to share-based payments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity |
| 1658 |
Excess tax deductions related to share-based payments |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity |
| 1659 |
Total income tax recognized directly in equity |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity |
| 1660 |
1132 - Disclosure - Income Taxes - Income Taxes Recognized in Other Comprehensive Income (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesIncomeTaxesRecognizedInOtherComprehensiveIncome |
| 1661 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1662 |
Income tax relating to components of other comprehensive income [abstract] |
Abstract |
|
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract |
| 1663 |
Current taxes |
Concept (Monetary) |
As Of |
Debit |
wns:IncomeTaxRelatingToCurrentTaxOfOtherComprehensiveIncome |
| 1664 |
Unrealized gain/(loss) on cash flow hedging derivatives |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome |
| 1665 |
Total income tax recognized directly in other comprehensive income |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 1666 |
1133 - Disclosure - Income Taxes - Reconciliation of Estimated Income Tax to Provision for Income Taxes (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesReconciliationOfEstimatedIncomeTaxToProvisionForIncomeTaxes |
| 1667 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1668 |
Major components of tax expense (income) [abstract] |
Abstract |
|
|
ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract |
| 1669 |
Profit before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1670 |
Income tax expense at tax rates applicable to individual entities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxExpenseIncomeAtApplicableTaxRate |
| 1671 |
Effect of: |
Abstract |
|
|
ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract |
| 1672 |
Items not deductible for tax |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfItemsNotDeductibleInDeterminingTaxableProfitTaxLoss |
| 1673 |
Exempt income |
Concept (Monetary) |
For Period |
Credit |
wns:TaxEffectOfIncomeExemptFromTax |
| 1674 |
Non tax deductible goodwill impairment |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfImpairmentLossOfGoodwill |
| 1675 |
(Gain)/Loss in respect of which deferred tax (liability)/asset not recognized due to uncertainty and ineligibility to carry forward |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfGainLossOfDeferredTaxLiabilityAssetNotRecognizedDueToUncertaintyAndIneligibilityToCarryforward |
| 1676 |
Recognition of unutilized tax benefits / Unrecognized losses utilized |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfTaxLossesUnutilisedCredits |
| 1677 |
Temporary difference that will reverse during tax holiday period |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfTemporaryDifferenceThatWillReverseDuringTaxHolidayPeriod |
| 1678 |
Change in tax rate and law |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectFromChangeInTaxRateLaw |
| 1679 |
Provision for uncertain tax position |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfProvisionForUncertainTaxPosition |
| 1680 |
State taxes |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfStateTaxRates |
| 1681 |
Due to acquisitions and merger |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfAcquisitionsAndMerger |
| 1682 |
One time tax on undistributed earnings |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectOfOneTimeTaxOnUndistributedEarnings |
| 1683 |
Others, net |
Concept (Monetary) |
For Period |
Debit |
wns:TaxEffectsOfOthers |
| 1684 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1685 |
1134 - Disclosure - Income Taxes - Summary of Deferred Taxes Arising from Temporary Differences and Unused Tax Losses (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfDeferredTaxesArisingFromTemporaryDifferencesAndUnusedTaxLosses |
| 1686 |
Disclosure of temporary difference, unused tax losses and unused tax credits [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 1687 |
Assets and liabilities [axis] |
Axis |
|
|
ifrs-full:AssetsAndLiabilitiesAxis |
| 1688 |
Assets and liabilities [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesMember |
| 1689 |
Deferred tax liabilities [member] |
Member |
|
|
wns:DeferredTaxLiabilitiesMember |
| 1690 |
Deferred tax assets [member] |
Member |
|
|
wns:DeferredTaxAssetsMember |
| 1691 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 1692 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 1693 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 1694 |
Unrealized gain/(loss) on cash flow hedging and investment [member] |
Member |
|
|
wns:UnrealizedGainLossOnCashFlowHedgingInvestmentMember |
| 1695 |
Others [member] |
Member |
|
|
wns:OthersMember |
| 1696 |
Property and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 1697 |
Net operating loss carryforward [member] |
Member |
|
|
wns:NetOperatingLossCarryforwardMember |
| 1698 |
Accruals deductible on actual payment [member] |
Member |
|
|
wns:AccrualsDeductibleOnActualPaymentMember |
| 1699 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1700 |
Minimum alternate tax [member] |
Member |
|
|
wns:MinimumAlternateTaxMember |
| 1701 |
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 1702 |
Opening balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1703 |
Additions due to acquisition during the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset |
| 1704 |
Recognized in statement of income |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 1705 |
Recognized in equity |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity |
| 1706 |
Recognized in/ Reclassified from other comprehensive income |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 1707 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset |
| 1708 |
Closing balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1709 |
1135 - Disclosure - Income Taxes - Deferred Tax Presented in Statement of Financial Position (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureIncomeTaxesDeferredTaxPresentedInStatementOfFinancialPosition |
| 1710 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1711 |
Deferred tax assets and liabilities [abstract] |
Abstract |
|
|
ifrs-full:DeferredTaxAssetsAndLiabilitiesAbstract |
| 1712 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
wns:DeferredTaxAssetsSetOffAgainstDeferredTaxLiabilities |
| 1713 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
wns:DeferredTaxLiabilitiesSetOffAgainstDeferredTaxAssets |
| 1714 |
Net deferred tax assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NetDeferredTaxLiabilities |
| 1715 |
1136 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureEarningsPerShareComputationOfBasicAndDilutedEarningsPerShare |
| 1716 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1717 |
Basic and diluted earnings per share [abstract] |
Abstract |
|
|
ifrs-full:BasicAndDilutedEarningsPerShareAbstract |
| 1718 |
Numerator: |
Abstract |
|
|
ifrs-full:ProfitLossAbstract |
| 1719 |
Profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 1720 |
Denominator: |
Abstract |
|
|
ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract |
| 1721 |
Basic weighted average ordinary shares outstanding |
Concept (Shares) |
For Period |
|
ifrs-full:WeightedAverageShares |
| 1722 |
Dilutive impact of equivalent stock options and RSUs |
Concept (Shares) |
For Period |
|
wns:DilutiveEffectOfShareOptionsRestrictedShareAndPerformanceShareOnNumberOfOrdinaryShares |
| 1723 |
Diluted weighted average ordinary shares outstanding |
Concept (Shares) |
For Period |
|
ifrs-full:AdjustedWeightedAverageShares |
| 1724 |
1137 - Disclosure - Earning Per Share - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureEarningPerShareAdditionalInformation |
| 1725 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1726 |
Earnings per share [abstract] |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 1727 |
Shares excluded from the calculation of diluted EPS options and RSUs since their effect is anti-dilutive |
Concept (Shares) |
For Period |
|
wns:SharesExcludedFromComputationOfDilutedEarningsPerShare |
| 1728 |
1138 - Disclosure - Related Party - List of the Company's Subsidiaries (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureRelatedPartyListOfTheCompanysSubsidiaries |
| 1729 |
Disclosure of transactions between related parties [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable |
| 1730 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 1731 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 1732 |
WNS Global Services SA (Pty) Limited [Member] |
Member |
|
|
wns:WNSGlobalServicesSAPtyLimitedMember |
| 1733 |
WNS Global Services Private Limited [member] |
Member |
|
|
wns:WNSGlobalServicesPrivateLimitedMember |
| 1734 |
MTS HealthHelp Inc. [member] |
Member |
|
|
wns:MTSHealthHelpIncMember |
| 1735 |
WNS North America Inc. [member] |
Member |
|
|
wns:WNSNorthAmericaIncMember |
| 1736 |
Value Edge Research Services Private Limited [member] |
Member |
|
|
wns:ValueEdgeResearchServicesPrivateLimitedMember |
| 1737 |
WNS Assistance Limited [member] |
Member |
|
|
wns:WNSAssistanceLimitedMember |
| 1738 |
WNS Assistance (Legal) Limited [member] |
Member |
|
|
wns:WNSAssistanceLegalLimitedMember |
| 1739 |
WNS Legal Assistance LLP [member] |
Member |
|
|
wns:WNSLegalAssistanceLLPMember |
| 1740 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1741 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1742 |
WNS Global Services (UK) Limited [member] |
Member |
|
|
wns:WNSGlobalServicesUKLimitedMember |
| 1743 |
WNS (Mauritius) Limited [member] |
Member |
|
|
wns:WNSMauritiusLimitedMember |
| 1744 |
HealthHelp Holdings LLC [member] |
Member |
|
|
wns:HealthhelpHoldingsLLCMember |
| 1745 |
Legal entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1746 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1747 |
WNS Customer Solutions (Singapore) Private Limited [member] |
Member |
|
|
wns:WNSCustomerSolutionsSingaporePrivateLimitedMember |
| 1748 |
HealthHelp Holdings LLC [member] |
Member |
|
|
wns:HealthhelpHoldingsLLCMember |
| 1749 |
WNS Legal Assistance LLP [member] |
Member |
|
|
wns:WNSLegalAssistanceLLPMember |
| 1750 |
Prettys Solicitors LLP [member] |
Member |
|
|
wns:PrettysSolicitorsLLPMember |
| 1751 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 1752 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 1753 |
WNS B-BBEE Staff Share Trust [Member] |
Member |
|
|
wns:WnsBbbeeStaffShareTrustMember |
| 1754 |
Disclosure of transactions between related parties [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems |
| 1755 |
Proportion of ownership interest |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInSubsidiary |
| 1756 |
Number of subsidiaries acquired |
Concept (Integer) |
For Period |
|
wns:NumberOfSubsidiariesAcquired |
| 1757 |
1139 - Disclosure - Related Party - Key Management Personnel Compensation (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureRelatedPartyKeyManagementPersonnelCompensation |
| 1758 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1759 |
Disclosure of transactions between related parties [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract |
| 1760 |
Remuneration and short-term benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits |
| 1761 |
Defined contribution plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits |
| 1762 |
Other benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits |
| 1763 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment |
| 1764 |
1140 - Disclosure - Operating Segments - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureOperatingSegmentsAdditionalInformation |
| 1765 |
Disclosure of operating segments [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 1766 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1767 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1768 |
WNS Global BPM segment [member] |
Member |
|
|
wns:WNSGlobalBPMSegmentMember |
| 1769 |
Disclosure of operating segments [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 1770 |
Number of reportable segment |
Concept (Integer) |
For Period |
|
wns:NumberOfReportableSegments1 |
| 1771 |
Number of clients individually accounted for more than 10% of total revenue |
Concept (Integer) |
For Period |
|
wns:NumberOfCustomerRepresentTenPercentOrMoreRevenue |
| 1772 |
Percentage of revenue from top customer |
Concept (Percent) |
For Period |
|
ifrs-full:PercentageOfEntitysRevenue |
| 1773 |
Percentage of trade receivables of top customer |
Concept (Percent) |
For Period |
|
wns:PercentageOfEntitysTradeReceivables |
| 1774 |
1141 - Disclosure - Operating Segments - Segment Results for Operating Segments (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureOperatingSegmentsSegmentResultsForOperatingSegments |
| 1775 |
Disclosure of operating segments [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 1776 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 1777 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 1778 |
Operating segments [member] |
Member |
|
|
ifrs-full:OperatingSegmentsMember |
| 1779 |
Inter segments [member] |
Member |
|
|
ifrs-full:EliminationOfIntersegmentAmountsMember |
| 1780 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1781 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1782 |
WNS global BPM [member] |
Member |
|
|
wns:WNSGlobalBPMMember |
| 1783 |
WNS Auto Claims BPM [member] |
Member |
|
|
wns:WNSAutoClaimsBPMMember |
| 1784 |
Types of customers [axis] |
Axis |
|
|
ifrs-full:TypesOfCustomersAxis |
| 1785 |
Types of customers [member] |
Member |
|
|
ifrs-full:TypesOfCustomersMember |
| 1786 |
External customers [member] |
Member |
|
|
wns:ExternalCustomersMember |
| 1787 |
Disclosure of operating segments [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 1788 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromRenderingOfServices |
| 1789 |
Payments to repair centers |
Concept (Monetary) |
For Period |
Debit |
wns:RepairPaymentsInAutoclaimsBPM |
| 1790 |
Revenue less repair payments (non-GAAP) |
Concept (Monetary) |
For Period |
Credit |
wns:RevenueLessRepairPayments |
| 1791 |
Depreciation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationExpense |
| 1792 |
Other costs |
Concept (Monetary) |
For Period |
Debit |
wns:OtherCosts |
| 1793 |
Impairment of goodwill |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 1794 |
Segment operating profit/(loss) |
Concept (Monetary) |
For Period |
Credit |
wns:SegmentOperatingProfitLossBeforeShareBasedPaymentExpenseAmortizationOfIntangibles |
| 1795 |
Other income, net |
Concept (Monetary) |
For Period |
Credit |
wns:OtherNonOperatingIncome1 |
| 1796 |
Finance expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 1797 |
Segment profit/(loss) before income taxes |
Concept (Monetary) |
For Period |
Credit |
wns:ProfitLossBeforeTaxShareBasedPaymentExpenseAmortizationOfIntangibles |
| 1798 |
Provision for income taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1799 |
Segment profit/(loss) |
Concept (Monetary) |
For Period |
Credit |
wns:SegmentProfitLossBeforeShareBasedPaymentExpenseAmortizationOfIntangibles |
| 1800 |
Amortization of intangible assets |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 1801 |
Share-based compensation expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1802 |
Profit/(loss) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 1803 |
Addition to non-current assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsToNoncurrentAssets |
| 1804 |
Total assets, net of elimination |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1805 |
Total liabilities, net of elimination |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 1806 |
1142 - Disclosure - Operating Segments - External Revenue and Non-current Assets (Excluding Goodwill and Intangible Assets) by Geographic Area (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureOperatingSegmentsExternalRevenueAndNoncurrentAssetsExcludingGoodwillAndIntangibleAssetsByGeographicArea |
| 1807 |
Disclosure of geographical areas [Table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 1808 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1809 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1810 |
UK [member] |
Member |
|
|
country:GB |
| 1811 |
USA [Member |
Member |
|
|
country:US |
| 1812 |
India [member] |
Member |
|
|
country:IN |
| 1813 |
South Africa [member] |
Member |
|
|
country:ZA |
| 1814 |
Philippines [member] |
Member |
|
|
country:PH |
| 1815 |
Rest of the world [member] |
Member |
|
|
wns:RestOfTheWorldMember |
| 1816 |
Europe (excluding UK) [member] |
Member |
|
|
wns:EuropeExcludingUkMember |
| 1817 |
Australia [member] |
Member |
|
|
country:AU |
| 1818 |
Disclosure of geographical areas [Line Items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 1819 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromRenderingOfServices |
| 1820 |
Non-current assets (excluding goodwill and intangible assets) |
Concept (Monetary) |
As Of |
Debit |
wns:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsGoodwillIntangibles |
| 1821 |
1143 - Disclosure - Commitment and Contingencies - Future Minimum Lease Payments under Non-cancelable Operating Leases (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureCommitmentAndContingenciesFutureMinimumLeasePaymentsUnderNoncancelableOperatingLeases |
| 1822 |
Disclosure of finance lease and operating lease by lessee [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable |
| 1823 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1824 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1825 |
Less than 1 Year [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1826 |
1-3 years [member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember |
| 1827 |
3-5 years [member] |
Member |
|
|
ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember |
| 1828 |
More than 5 years [member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 1829 |
Disclosure of finance lease and operating lease by lessee [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems |
| 1830 |
Minimum lease payments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:MinimumOperatingLeasePayments |
| 1831 |
1144 - Disclosure - Commitment and Contingencies - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureCommitmentAndContingenciesAdditionalInformation |
| 1832 |
Commitments and contingencies [Table] |
Table |
* |
* |
wns:CommitmentsAndContingenciesTable |
| 1833 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1834 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1835 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1836 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1837 |
Commitments and contingencies [line items] |
LineItems |
|
|
wns:CommitmentsAndContingenciesLineItems |
| 1838 |
Rental expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RentalExpense |
| 1839 |
Commitments net |
Concept (Monetary) |
As Of |
Credit |
wns:CommitmentsNet |
| 1840 |
Bank guarantees |
Concept (Monetary) |
As Of |
Credit |
wns:BankGuaranteesToSubsidiaries |
| 1841 |
Bank guarantees, remaining expiry term |
Concept (xbrli:durationItemType) |
For Period |
|
wns:BankGuaranteesRemainingExpiryTerm |
| 1842 |
Restricted time deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities |
| 1843 |
1145 - Disclosure - Additional Capital Disclosures - Summary of Capital Structure (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureAdditionalCapitalDisclosuresSummaryOfCapitalStructure |
| 1844 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1845 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract |
| 1846 |
Total equity attributable to the equity shareholders of the Company |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 1847 |
As percentage of total capital |
Concept (Percent) |
As Of |
|
wns:PercentageOfOutstandingShareCapital |
| 1848 |
Long term debt |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtBeforeNettingOffDebtIssuanceCost |
| 1849 |
Long term debt |
Concept (Monetary) |
As Of |
Credit |
wns:LongtermDebtBeforeNettingOffDebtIssuanceCost |
| 1850 |
As percentage of total capital |
Concept (Percent) |
As Of |
|
wns:BorrowingsPercentageOfOutstandingShareCapital |
| 1851 |
Total capital (debt and equity) |
Concept (Monetary) |
As Of |
Credit |
wns:DebtAndEquity |
| 1852 |
Percentage of change in total equity attributable to the equity shareholders of the Company |
Concept (Percent) |
As Of |
|
wns:PercentageOfChangeInBorrowingsOutstandingShareCapital |
| 1853 |
Percentage of change in long term debt |
Concept (Percent) |
As Of |
|
wns:ChangeInPercentageOfLongTermBorrowings |
| 1854 |
Percentage of change in total debt |
Concept (Percent) |
As Of |
|
wns:ChangeInPercentageOfLoansAndBorrowings |
| 1855 |
Percentage of change in total capital (debt and equity) |
Concept (Percent) |
As Of |
|
wns:ChangeInPercentageOfDebtToEquity |
| 1856 |
1146 - Disclosure - Additional Capital Disclosures - Summary of Capital Structure (Parenthetical) (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureAdditionalCapitalDisclosuresSummaryOfCapitalStructureParenthetical |
| 1857 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1858 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract |
| 1859 |
Unamortised debt issuance cost |
Concept (Monetary) |
As Of |
Credit |
wns:UmamortisedDebtIssueCost |
| 1860 |
1147 - Disclosure - Additional Capital Disclosures - Additional Information (Detail) |
Network |
* |
* |
http://www.wns.com/taxonomy/role/DisclosureAdditionalCapitalDisclosuresAdditionalInformation |
| 1861 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1862 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract |
| 1863 |
Borrowings percentage of outstanding share capital |
Concept (Percent) |
As Of |
|
wns:BorrowingsPercentageOfOutstandingShareCapital |