INTERTAPE POLYMER GROUP INC (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 0001000 - Document - Document and Entity Information Network

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2 Implied Table Table

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4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
7 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
8 Document Type Concept (Submission Type) For Period dei:DocumentType
9 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
10 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
11 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
12 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
13 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
14 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
15 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
16 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
17 1001000 - Statement - Consolidated Earnings Network

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18 Implied Table Table

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19 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
20 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
21 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
22 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
23 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
24 Research expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
25 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
26 Operating profit before manufacturing facility closures, restructuring and other related charges Concept (Monetary) For Period Credit itp:ProfitLossFromOperatingActivitiesBeforeExpenseOfRestructuringActivities
27 Manufacturing facility closures, restructuring and other related charges (Note 4) Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
28 Operating profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
29 Finance costs (income) (Note 3) Abstract itp:FinanceIncomeCostsAbstract
30 Interest Concept (Monetary) For Period Debit ifrs-full:InterestExpense
31 Other expense (income), net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
32 Finance costs (income) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
33 Earnings before income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
34 Income tax expense (Note 5) Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
35 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
36 Deferred Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
37 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
38 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
39 Net earnings (loss) attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
40 Company shareholders Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
41 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
42 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
43 Earnings per share attributable to Company shareholders (Note 6) Abstract ifrs-full:EarningsPerShareAbstract
44 Basic (in US dollars per share) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
45 Diluted (in US dollars per share) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
46 1002000 - Statement - Consolidated Comprehensive Income Network

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48 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
49 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
50 Other comprehensive income (loss) Abstract ifrs-full:OtherComprehensiveIncomeAbstract
51 Change in fair value of interest rate swap agreements designated as cash flow hedges (Note 22) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
52 Reclassification adjustments for amounts recognized in earnings (Note 22) Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax
53 Deferred tax benefit due to enactment of US tax reform legislation (Note 5) Concept (Monetary) For Period Credit itp:OtherComprehensiveIncomeNetofTaxIncreaseFromRemeasurementOfDeferredTaxPursuantToTaxCutsandJobsAct
54 Change in cumulative translation adjustments Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
55 Net loss arising from hedge of a net investment in foreign operations (Note 22) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
56 Items that will be reclassified subsequently to net earnings Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
57 Remeasurement of defined benefit liability (Note 18) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
58 Deferred tax expense due to enactment of US tax reform legislation (Note 5) Concept (Monetary) For Period Debit itp:OtherComprehensiveIncomeNetofTaxDecreaseFromRemeasurementOfDeferredTaxPursuantToTaxCutsandJobsAct
59 Items that will not be reclassified subsequently to net earnings Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
60 Other comprehensive (loss) income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
61 Comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
62 Comprehensive income (loss) for the year attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
63 Company shareholders Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
64 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
65 Comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
66 1002501 - Statement - Consolidated Comprehensive Income (Parenthetical) Network

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68 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
69 Presented net of deferred tax expense (benefit) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
70 Presented net of deferred income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
71 1003000 - Statement - Consolidated Changes in Equity Network

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72 Statement of changes in equity [table] Table

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73 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
74 Equity [member] Member ifrs-full:EquityMember
75 Total Member ifrs-full:EquityAttributableToOwnersOfParentMember
76 Capital stock Member ifrs-full:IssuedCapitalMember
77 Contributed surplus Member ifrs-full:SharePremiumMember
78 Accumulated other comprehensive income, Total Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
79 Accumulated other comprehensive loss, Cumulative translation adjustment account Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
80 Accumulated other comprehensive loss, Reserve for cash flow hedges Member ifrs-full:ReserveOfCashFlowHedgesMember
81 Deficit Member ifrs-full:RetainedEarningsMember
82 Non-controlling interest Member ifrs-full:NoncontrollingInterestsMember
83 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
84 Beginning balance, equity (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
85 Beginning balance, equity Concept (Monetary) As Of Credit ifrs-full:Equity
86 Transactions with owners Abstract ifrs-full:ChangesInEquityAbstract
87 Exercise of stock options (Note 16) (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
88 Exercise of stock options (Note 16) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
89 Change in excess tax benefit on exercised share-based awards (Note 5) Concept (Monetary) For Period Credit itp:IncreaseDecreaseInExcessTaxBenefitThroughExerciseOfShareBasedAwardsEquity
90 Change in excess tax benefit on outstanding share-based awards (Note 5) Concept (Monetary) For Period Credit itp:IncreaseDecreaseInExcessTaxBenefitThroughOutstandingShareBasedAwardsEquity
91 Share-based compensation (Note 16) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
92 Share-based compensation expense credited to capital on options exercised (Note 16) Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughSharebasedPaymentTransactionsOptionsExercisedEquity
93 Repurchases of common shares (Note 16) (in shares) Concept (Shares) For Period itp:TreasuryStockSharesAcquired1
94 Repurchases of common shares (Note 16) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions
95 Dividends on common shares (Note 16) Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
96 Increase (decrease) in transactions with owners (in shares) Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
97 Change in contributed surplus Concept (Monetary) For Period Credit itp:IncreaseDecreaseInEquityExcludingComprehensiveIncome
98 Net earnings (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
99 Other comprehensive income (loss) Abstract ifrs-full:ComprehensiveIncomeAbstract
100 Change in fair value of interest rate swap agreements designated as cash flow hedges (Note 22) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
101 Reclassification adjustments for amounts recognized in earnings (Note 22) Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax
102 Remeasurement of defined benefit liability (Note 18) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
103 Deferred tax benefit (expense) due to enactment of US tax reform legislation (Note 5) Concept (Monetary) For Period Credit itp:TaxCutsandJobsActAmountsAfterReclassificationfromAOCItoRetainedEarningsNetofTax
104 Change in cumulative translation adjustments Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
105 Net loss arising from hedge of a net investment in foreign operations (Note 22) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
106 Other comprehensive (loss) income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
107 Comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
108 Recognition of non-controlling interest put options arising from the acquisition of Powerband (Note 22) Concept (Monetary) For Period Debit itp:RecognitionOfNoncontrollingInterestPutOptionLiability
109 Acquisition of the non-controlling interest of Powerband (Note 22) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
110 Derecognition of non-controlling interest put options arising from the Powerband Acquisition (Note 22) Concept (Monetary) For Period Credit itp:DerecognitionOfNoncontrollingInterestPutOptionLiability
111 Recognition of the call option redemption liability arising from the Powerband Acquisition (Note 22) Concept (Monetary) For Period Debit itp:RecognitionOfCallOptionRedemptionLiability
112 Non-controlling interest arising from investment Concept (Monetary) For Period Debit itp:RecognitionOfNoncontrollingPurchaseofInvestment
113 Capital transactions with non-controlling shareholders (Note 17) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
114 Recognition of non-controlling interest put options arising from the Capstone Acquisition (Note 22) Concept (Monetary) For Period Debit itp:RecognitionOfPutOptionRedemptionLiability
115 Non-controlling interest arising from the Powerband Acquisition (Note 17) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
116 Derecognition of call option redemption liability arising from the Powerband Acquisition (Note 22) Concept (Monetary) For Period Credit itp:DerecognitionOfCallOptionRedemptionLiability
117 Ending balance, equity (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
118 Ending balance, equity Concept (Monetary) As Of Credit ifrs-full:Equity
119 1003501 - Statement - Consolidated Changes in Equity (Parenthetical) Network

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120 Statement of changes in equity [table] Table

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121 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
122 Equity [member] Member ifrs-full:EquityMember
123 Deficit Member ifrs-full:RetainedEarningsMember
124 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
125 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
126 Powerband Industries Private Limited Member itp:PowerbandIndustriesPrivateLimitedMember
127 Polyair Member itp:PolyairInterPackInc.Member
128 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
129 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
130 Capstone Member itp:CapstoneInvestmentMember
131 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
132 Income tax relating to cash flow hedges of other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
133 Presented net of deferred income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
134 Proportion of Ownership Interest and Voting Power Held as of: Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
135 Minimum required ownership of voting rights held in subsidiary Concept (Percent) As Of itp:MinimumRequiredProportionOfVotingRightsHeldInSubsidiary
136 Proportion of voting rights held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfVotingRightsHeldByNoncontrollingInterests
137 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
138 Income tax benefit Concept (Monetary) For Period Debit ifrs-full:DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions
139 1004000 - Statement - Consolidated Cash Flows Network

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140 Implied Table Table

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141 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
142 OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
143 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
144 Adjustments to net earnings Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
145 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
146 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
147 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
148 Non-cash charges in connection with manufacturing facility closures, restructuring and other related charges Concept (Monetary) For Period Debit itp:RestructuringCosts1
149 Impairment of inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories
150 Share-based compensation expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
151 Pension and other post-retirement expense related to defined benefit plans Concept (Monetary) For Period Debit itp:PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash1
152 Loss (gain) on foreign exchange Concept (Monetary) For Period Debit itp:Adjustmentsforforeignexchangelossesgains
153 Other adjustments for non-cash items Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForNoncashItems
154 Income taxes paid, net Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
155 Contributions to defined benefit plans Concept (Monetary) For Period Credit itp:ContributionsToDefinedBenefitsPlansPaidClassifiedAsOperatingActivities
156 Cash flows from operating activities before changes in working capital items Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital
157 Changes in working capital items Abstract itp:ChangesinWorkingCapitalAbstract
158 Trade receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
159 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
160 Other current assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
161 Accounts payable and accrued liabilities and share-based compensation liabilities, current Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
162 Provisions Concept (Monetary) For Period Debit itp:AdjustmentsForIncreaseDecreaseInProvisions
163 Increase (decrease) in working capital Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
164 Cash flows from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
165 INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
166 Acquisition of subsidiaries, net of cash acquired Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
167 Purchases of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
168 Purchase of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
169 Other investing activities Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities
170 Cash flows from investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
171 FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
172 Proceeds from borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
173 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
174 Payments of debt issue costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
175 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
176 Proceeds from exercise of stock options Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
177 Repurchases of common shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
178 Dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
179 Acquisition of non-controlling interest in Powerband through settlement of call option Concept (Monetary) For Period Credit itp:PaymentsForSettlementOfCallOptionRedemptionLiability
180 Cash outflow from capital transactions with non-controlling interest in Capstone Concept (Monetary) For Period Credit ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries
181 Other financing activities Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
182 Cash flows from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
183 Net increase (decrease) in cash Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
184 Effect of foreign exchange differences on cash Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
185 Cash, beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
186 Cash, end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
187 1005000 - Statement - Consolidated Balance Sheets Network

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188 Implied Table Table

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189 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
190 ASSETS Abstract ifrs-full:AssetsAbstract
191 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
192 Trade receivables (Note 22) Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
193 Inventories (Note 7) Concept (Monetary) As Of Debit ifrs-full:Inventories
194 Other current assets (Note 8) Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
195 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
196 Property, plant and equipment (Note 9) Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
197 Goodwill (Note 17) Concept (Monetary) As Of Debit ifrs-full:Goodwill
198 Intangible assets (Note 11) Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
199 Deferred tax assets (Note 5) Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
200 Other assets (Note 10) Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
201 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
202 LIABILITIES Abstract ifrs-full:LiabilitiesAbstract
203 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
204 Share-based compensation liabilities, current (Note 16) Concept (Monetary) As Of Credit itp:LiabilitiesFromShareBasedPaymentTransactionsCurrent
205 Call option redemption liability (Note 22) Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
206 Provisions, current (Note 14) Concept (Monetary) As Of Credit ifrs-full:CurrentProvisions
207 Borrowings, current (Note 13) Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
208 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
209 Borrowings, non-current (Note 13) Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
210 Pension, post-retirement and other long-term employee benefits (Note 18) Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
211 Share-based compensation liabilities, non-current (Note 16) Concept (Monetary) As Of Credit itp:LiabilitiesFromSharebasedPaymentTransactionsNoncurrent
212 Non-controlling interest put options (Note 22) Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
213 Deferred tax liabilities (Note 5) Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
214 Provisions, non-current (Note 14) Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
215 Other liabilities (Note 15) Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
216 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
217 EQUITY Abstract ifrs-full:EquityAbstract
218 Capital stock (Note 16) Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
219 Contributed surplus (Note 16) Concept (Monetary) As Of Credit ifrs-full:SharePremium
220 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
221 Accumulated other comprehensive loss Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
222 Total equity attributable to Company shareholders Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
223 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
224 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
225 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
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262 2110100 - Disclosure - OTHER ASSETS Network

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270 2112100 - Disclosure - IMPAIRMENT OF ASSETS Network

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290 2117100 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL Network

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294 2118100 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS Network

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298 2119100 - Disclosure - SUPPLEMENTAL DISCLOSURES BY GEOGRAPHIC LOCATION AND PRODUCT LINE Network

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302 2120100 - Disclosure - RELATED PARTY TRANSACTIONS Network

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325 Business Acquisitions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
326 Non-controlling Interests Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory
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328 Segment Reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
329 Revenue Recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
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331 Research Expenses Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
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333 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
334 Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
335 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
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349 Estimation Uncertainty Concept (Text Block (HTML)) For Period itp:DescriptionOfAccountingPolicyForEstimationOfUncertaintiesPolicyTextBlock
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369 Schedule of income tax expense (benefit) relating to components of other comprehensive income (loss) Concept (Text Block (HTML)) For Period itp:DisclosureOfComponentsOfIncomeTaxExpenseBenefitIncludedinOtherComprehensiveIncomeLossExplanatoryTableTextBlock
370 Schedule of recognized deferred tax assets and liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
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374 Schedule of expiration dates of operating losses carried forward Concept (Text Block (HTML)) For Period itp:DisclosureOfExpirationDatesOfOperatingLossCarryforwardsExplanatoryTableTextBlock
375 2306301 - Disclosure - EARNINGS PER SHARE (Tables) Network

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379 Schedule of additional items included or excluded in diluted earnings per share Concept (Text Block (HTML)) For Period itp:DisclosureofAntidilutiveSecuritiesIncludedOrExcludedfromComputationofEarningsPerShareExplanatoryTableTextBlock
380 2307301 - Disclosure - INVENTORIES (Tables) Network

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384 Schedule of recorded impairments and reversal of impairment losses of inventory Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory
385 Schedule of amount of inventories included in the Company’s consolidated earnings as an expense Concept (Text Block (HTML)) For Period itp:DisclosureOfDetailedInformationAboutInventoriesTableTextBlock
386 2308301 - Disclosure - OTHER CURRENT ASSETS (Tables) Network

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394 Schedule of supplemental information regarding property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
395 2310301 - Disclosure - OTHER ASSETS (Tables) Network

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399 2311301 - Disclosure - INTANGIBLE ASSETS (Tables) Network

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403 2312301 - Disclosure - IMPAIRMENT OF ASSETS (Tables) Network

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408 2313301 - Disclosure - BORROWINGS (Tables) Network

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413 Schedule of carrying amounts of assets under lease serving as security for finance lease liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
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415 2314301 - Disclosure - PROVISIONS AND CONTINGENT LIABILITIES (Tables) Network

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429 Schedule of stock options outstanding and exercisable Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory
430 Schedule of changes in number of other equity instruments outstanding Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
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483 Schedule of age of trade receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedExplanatory
484 Schedule of continuity summary of the Company’s allowance for doubtful accounts Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory
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486 Schedule of the Company's capital structure Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfManagingLiquidityRisk
487 2402403 - Disclosure - ACCOUNTING POLICIES - New Accounting Standards and Interpretations Issued but Not Yet Effective (Details) Network

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495 Bottom of range Member ifrs-full:BottomOfRangeMember
496 Top of range Member ifrs-full:TopOfRangeMember
497 Maturity [axis] Axis ifrs-full:MaturityAxis
498 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
499 Current maturity Member ifrs-full:NotLaterThanOneYearMember
500 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
501 Maturity period of debt securities Concept (xbrli:durationItemType) For Period itp:DebtSecuritiesMaturityPeriod
502 Non-cancellable short-term operating and low-value lease commitments Concept (Monetary) As Of Credit itp:MinimumLeasePaymentsPayableUnderNoncancellableOperatingandLowvalueLeases
503 Right-of-use assets Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
504 Lease liabilities Concept (Monetary) As Of Credit ifrs-full:LeaseLiabilities
505 Decrease in accounts payable and accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
506 Decrease in other liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
507 2402404 - Disclosure - ACCOUNTING POLICIES - Parent Company's Subsidiaries (Details) Network

*

*

 http://www.itape.com/role/AccountingPoliciesParentCompanysSubsidiariesDetails
508 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
509 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
510 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
511 Better Packages, Inc. Member itp:BetterPackagesInc.Member
512 BP Acquisition Corporation Member itp:BPAcquisitionCorporationMember
513 Cantech Industries, Inc. Member itp:CantechIndustriesInc.Member
514 Capstone Polyweave Private Limited Member itp:CapstonePolyweavePrivateLimiteddbaCapstoneMember
515 FIBOPE Portuguesa-Filmes Biorientados, S.A. Member itp:FIBOPEPortuguesaFilmesBiorientadosS.A.Member
516 GPCP, Inc. Member itp:GPCPInc.Member
517 Intertape Polymer Corp. Member itp:IntertapePolymerCorp.Member
518 Intertape Polymer Europe GmbH Member itp:IntertapePolymerEuropeGmbHMember
519 Intertape Polymer Inc. Member itp:IntertapePolymerInc.Member
520 Intertape Polymer Japan GK Member itp:IntertapePolymerJapanGKMember
521 Intertape Polymer Woven USA Inc. Member itp:IntertapePolymerWovenUSAInc.Member
522 Intertape Woven Products Services, S.A. de C.V. Member itp:IntertapeWovenProductsServicesS.A.deC.V.Member
523 Intertape Woven Products, S.A. de C.V. Member itp:IntertapeWovenProductsS.A.deC.V.Member
524 IPG (US) Holdings Inc. Member itp:IPGUSHoldingsInc.Member
525 IPG (US) Inc. Member itp:IPGUSInc.Member
526 IPG Luxembourg Finance S.à.r.l. Member itp:IPGLuxembourgFinanceS.a.r.lMember
527 IPG Mauritius Holding Company Ltd Member itp:IPGMauritiusHoldingCompanyLtdMember
528 IPG Mauritius II Ltd Member itp:IPGMauritiusIILtdMember
529 IPG Mauritius Ltd Member itp:IPGMauritiusLtdMember
530 Polyair Canada Limited Member itp:PolyairCanadaLimitedMember
531 Polyair Corporation Member itp:PolyairCorporationMember
532 Powerband Industries Private Limited Member itp:PowerbandIndustriesPrivateLimitedMember
533 Spuntech Fabrics Inc. Member itp:SpuntechFabricsInc.Member
534 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
535 Proportion of Ownership Interest and Voting Power Held as of: Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
536 2402405 - Disclosure - ACCOUNTING POLICIES - Revenue Recognition (Details) Network

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*

 http://www.itape.com/role/AccountingPoliciesRevenueRecognitionDetails
537 Implied Table Table

*

*

 implied:Table
538 Disclosure of changes in accounting policies, accounting estimates and errors [Abstract] Abstract itp:DisclosureofchangesinaccountingpoliciesaccountingestimatesanderrorsAbstract
539 Number of products Concept (Integer) As Of itp:NumberofProducts
540 Credit term upon delivery Concept (xbrli:durationItemType) For Period itp:CreditTerm
541 2402406 - Disclosure - ACCOUNTING POLICIES - Share-Based Compensation (Details) Network

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*

 http://www.itape.com/role/AccountingPoliciesShareBasedCompensationDetails
542 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
543 Award Type [Axis] Axis itp:AwardType1Axis
544 Award Type [Member] Member itp:AwardType1Member
545 DSUs Member itp:DeferredShareUnitsDSUMember
546 PSUs Member itp:PerformanceShareUnitsPSUMember
547 PSUs market performance conditions Member itp:PerformanceShareUnitsPSUsMarketPerformanceConditionsMember
548 PSUs non-market performance conditions Member itp:PerformanceShareUnitsPSUsNonmarketPerformanceConditionsMember
549 RSUs Member itp:RestrictedShareUnitsRSUsMember
550 Award Date [Axis] Axis itp:AwardDate1Axis
551 Award Date [Domain] Member itp:AwardDate1Domain
552 Subsequent to December 2017 Member itp:GrantDateSubsequenttoDecember2017Member
553 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
554 Incremental fair value granted, modified share-based payment arrangements Concept (Monetary) For Period ifrs-full:IncrementalFairValueGrantedModifiedSharebasedPaymentArrangements
555 Awards threshold trading days Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsThresholdTradingDays
556 Awards threshold consecutive trading days Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsThresholdConsecutiveTradingDays
557 Awards percentage based on monte carlo simulation model Concept (Percent) As Of itp:OtherEquityInstrumentsWeightedAverageFairValueAsPercentageUsingMonteCarloSimulationModel
558 Awards percentage based on volume weighted average trading price (VWAP) Concept (Percent) As Of itp:OtherEquityInstrumentsWeightedAverageFairValueAsPercentageofVolumeWeightedAverageTradingPriceVWAP
559 2402407 - Disclosure - ACCOUNTING POLICIES - Property, Plant and Equipment (Details) Network

*

*

 http://www.itape.com/role/AccountingPoliciesPropertyPlantAndEquipmentDetails
560 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
561 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
562 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
563 Buildings and related major components Member ifrs-full:BuildingsMember
564 Manufacturing equipment and related major components Member ifrs-full:MachineryMember
565 Computer equipment and software Member itp:ComputerEquipmentAndComputerSoftwareMember
566 Furniture, office equipment, and other Member itp:FurnitureOfficeEquipmentandOtherMember
567 Range [axis] Axis ifrs-full:RangeAxis
568 Ranges [member] Member ifrs-full:RangesMember
569 Bottom of range Member ifrs-full:BottomOfRangeMember
570 Top of range Member ifrs-full:TopOfRangeMember
571 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
572 Estimated useful lives of assets Concept (xbrli:durationItemType) For Period itp:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipmentPeriod
573 2402408 - Disclosure - ACCOUNTING POLICIES - Intangible Assets (Details) Network

*

*

 http://www.itape.com/role/AccountingPoliciesIntangibleAssetsDetails
574 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
575 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
576 Intangibles Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
577 Distribution rights and customer contracts Member itp:DistributionRightsAndCustomersContractsMember
578 Customer lists, license agreements and software Member itp:CustomerListsLicenseAgreementsAndSoftwareMember
579 Patents and trademarks being amortized Member ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember
580 Non-compete agreements Member itp:NoncompeteAgreements1Member
581 Range [axis] Axis ifrs-full:RangeAxis
582 Ranges [member] Member ifrs-full:RangesMember
583 Bottom of range Member ifrs-full:BottomOfRangeMember
584 Top of range Member ifrs-full:TopOfRangeMember
585 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
586 Estimated useful lives Concept (xbrli:durationItemType) For Period itp:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwillPeriod
587 2403402 - Disclosure - INFORMATION INCLUDED IN CONSOLIDATED EARNINGS (Details) Network

*

*

 http://www.itape.com/role/InformationIncludedInConsolidatedEarningsDetails
588 Implied Table Table

*

*

 implied:Table
589 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
590 Employee benefit expense Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
591 Wages, salaries and other short-term benefits Concept (Monetary) For Period Debit ifrs-full:ShorttermEmployeeBenefitsExpense
592 Termination benefits (Note 14) Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
593 Share-based compensation expense (Note 16) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
594 Pension, post-retirement and other long-term employee benefit plans (Note 18): Abstract ifrs-full:ShorttermEmployeeBenefitsExpenseAbstract
595 Defined benefit plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
596 Defined contributions plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
597 Employee benefits expense Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
598 Finance costs - Interest Abstract itp:FinanceIncomeCostsAbstract
599 Interest on borrowings Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
600 Amortization and write-off of debt issue costs on borrowings Concept (Monetary) For Period Debit ifrs-full:BorrowingCostsRecognisedAsExpense
601 Interest capitalized to property, plant and equipment Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
602 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
603 Finance costs - other expense (income), net Abstract itp:FinanceCostsOtherExpenseIncomeNetAbstract
604 Foreign exchange loss (gain) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
605 Other costs (income), net Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
606 Other finance costs expense (income), net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
607 Additional information Abstract ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract
608 Depreciation of property, plant and equipment (Note 9) Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
609 Amortization of intangible assets (Note 11) Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
610 Impairment of assets (Note 12) Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
611 2404402 - Disclosure - MANUFACTURING FACILITY CLOSURES, RESTRUCTURING AND OTHER RELATED CHARGES (Details) Network

*

*

 http://www.itape.com/role/ManufacturingFacilityClosuresRestructuringAndOtherRelatedChargesDetails
612 Schedule of Restructuring and Related Costs [Table] Table

*

*

 itp:ScheduleOfRestructuringAndRelatedCosts1Table
613 Restructuring Plan [Axis] Axis itp:RestructuringPlan1Axis
614 Restructuring Plan [Member] Member itp:RestructuringPlan1Member
615 Restructurings in 2018, 2017 and 2016 Member itp:Restructuring20182017And2016Member
616 Schedule Of Restructuring And Related Costs [Line Items] LineItems itp:ScheduleOfRestructuringAndRelatedCostsLineItems
617 Impairment of property, plant and equipment Concept (Monetary) For Period ifrs-full:WritedownsReversalsOfPropertyPlantAndEquipment
618 Impairment of intangibles Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
619 Equipment relocation Concept (Monetary) For Period Debit itp:ExpenseofRestructuringActivitiesRelocationCostsOfPropertyPlantAndEquipment
620 Revaluation and impairment of inventories Concept (Monetary) For Period Debit ifrs-full:WritedownsReversalsOfInventories
621 Termination benefits and other labor related costs Concept (Monetary) For Period Debit itp:TerminationBenefitsExpenseandLaborRelatedCosts
622 Restoration and idle facility costs Concept (Monetary) For Period Debit itp:ExpenseofRestructuringActivitiesRestorationAndIdleFacilityCosts
623 Insurance proceeds Concept (Monetary) For Period Credit itp:ExpenseofRestructuringActivitiesInsuranceRecoveries
624 Professional fees Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
625 Other (recoveries) costs Concept (Monetary) For Period Debit itp:ExpenseofRestructuringActivitiesOtherRestructuringCosts
626 Manufacturing facility closures, restructuring and other related charges Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
627 2404403 - Disclosure - MANUFACTURING FACILITY CLOSURES, RESTRUCTURING AND OTHER RELATED CHARGES - Narrative (Details) Network

*

*

 http://www.itape.com/role/ManufacturingFacilityClosuresRestructuringAndOtherRelatedChargesNarrativeDetails
628 Schedule of Restructuring and Related Costs [Table] Table

*

*

 itp:ScheduleOfRestructuringAndRelatedCosts1Table
629 Restructuring Plan [Axis] Axis itp:RestructuringPlan1Axis
630 Restructuring Plan [Member] Member itp:RestructuringPlan1Member
631 South Carolina Flood Member itp:SouthCarolinaFloodMember
632 TaraTape Closure Member itp:TaraTapeClosureMember
633 Other Restructuring Member itp:OtherRestructuring1Member
634 Restructuring Type [Axis] Axis itp:RestructuringType1Axis
635 Type of Restructuring [Member] Member itp:TypeofRestructuring1Member
636 Facility Closing Member itp:FacilityClosing1Member
637 Income Statement Location [Axis] Axis itp:IncomeStatementLocation1Axis
638 Income Statement Location [Member] Member itp:IncomeStatementLocation1Member
639 Manufacturing facility closures, restructuring and other related charges Member itp:ExpenseOfRestructuringActivitiesMember
640 Cost of sales Member itp:CostofSalesMember
641 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
642 Other provisions [member] Member ifrs-full:OtherProvisionsMember
643 Restructuring provision Member ifrs-full:RestructuringProvisionMember
644 Balance Sheet Location [Axis] Axis itp:BalanceSheetLocation1Axis
645 Balance Sheet Location [Member] Member itp:BalanceSheetLocationMember
646 Provisions Member itp:CurrentProvisionsMember
647 Accounts payable and accrued liabilities Member itp:AccountsPayableAndAccruedLiabilities1Member
648 Schedule Of Restructuring And Related Costs [Line Items] LineItems itp:ScheduleOfRestructuringAndRelatedCostsLineItems
649 Restructuring charges Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
650 Insurance settlement awarded from other party Concept (Monetary) As Of Debit itp:InsuranceSettlementAmountAwardedFromOtherParty
651 Insurance settlement awarded from other party, deductible amount Concept (Monetary) As Of Credit itp:InsuranceSettlementAmountAwardedFromOtherPartyDeductibleAmount
652 Insurance settlement proceeds Concept (Monetary) For Period Credit itp:ProceedsfromInsuranceSettlements
653 Other provisions Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
654 2405402 - Disclosure - INCOME TAXES - Narrative (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesNarrativeDetails
655 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
656 Income Tax Authority [Axis] Axis itp:IncomeTaxAuthority1Axis
657 Income Tax Authority [Member] Member itp:IncomeTaxAuthority1Member
658 Foreign Tax Authority Member itp:ForeignTaxAuthority1Member
659 Canadian Tax Authority Member itp:DomesticTaxAuthority1Member
660 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
661 Net tax benefit due to remeasurement of US net deferred tax liability at lower tax corporate tax rate Concept (Monetary) For Period Credit itp:TaxCutsandJobsActChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit
662 Deferred tax asset, amount derecognized Concept (Monetary) As Of Debit itp:DeferredTaxAssetAmountDerecognized
663 2405403 - Disclosure - INCOME TAXES - Income Tax Rate Reconciliation (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesIncomeTaxRateReconciliationDetails
664 Implied Table Table

*

*

 implied:Table
665 Income Taxes [Abstract] Abstract itp:IncomeTaxesAbstract
666 Combined Canadian federal and provincial income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
667 Foreign earnings/losses taxed at higher income tax rates Concept (Percent) For Period itp:TaxRateEffectOfHigherForeignTaxRates
668 Foreign earnings/losses taxed at lower income tax rates Concept (Percent) For Period itp:TaxRateEffectOfLowerForeignTaxRates
669 Impact of TCJA enactment Concept (Percent) For Period itp:TaxRateEffectOfTaxCutsandJobsAct
670 Prior period adjustments Concept (Percent) For Period ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
671 Nondeductible expenses Concept (Percent) For Period ifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
672 Impact of other differences Concept (Percent) For Period ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
673 Nontaxable dividend Concept (Percent) For Period ifrs-full:TaxRateEffectOfRevenuesExemptFromTaxation
674 Canadian deferred tax assets not recognized Concept (Percent) For Period itp:TaxRateEffectOfDeferredTaxAssetsNotRecognized
675 Change in derecognition of deferred tax assets Concept (Percent) For Period itp:TaxRateEffectOfDerecognitionofDeferredTaxAssets
676 Effective income tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
677 2405404 - Disclosure - INCOME TAXES - Major Components of Income Tax Expense (Benefit) (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesMajorComponentsOfIncomeTaxExpenseBenefitDetails
678 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
679 Income Tax Authority [Axis] Axis itp:IncomeTaxAuthority1Axis
680 Income Tax Authority [Member] Member itp:IncomeTaxAuthority1Member
681 Foreign Tax Authority Member itp:ForeignTaxAuthority1Member
682 Canadian Tax Authority Member itp:DomesticTaxAuthority1Member
683 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
684 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
685 U.S. Member country:US
686 Other Jurisdictions Member itp:OtherGeographicalAreasMember
687 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
688 Current income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
689 Deferred tax expense (benefit) Abstract ifrs-full:DeferredTaxExpenseIncomeAbstract
690 TCJA reduction in US corporate statutory rate Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
691 Derecognition (recognition) of deferred tax assets Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseArisingFromWritedownOrReversalOfWritedownOfDeferredTaxAsset
692 Temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
693 Canadian deferred tax assets not recognized Concept (Monetary) For Period Debit itp:DeferredTaxExpenseRelatingtoTaxAssetsNotRecognized
694 Total deferred income tax expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
695 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
696 2405405 - Disclosure - INCOME TAXES - Components of Other Comprehensive Income (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesComponentsOfOtherComprehensiveIncomeDetails
697 Implied Table Table

*

*

 implied:Table
698 Income Taxes [Abstract] Abstract itp:IncomeTaxesAbstract
699 Amount before income tax Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract
700 Deferred tax expense on remeasurement of defined benefit liability Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
701 Other comprehensive income, before tax, cash flow hedges Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
702 Deferred tax expense, before tax Concept (Monetary) For Period Credit itp:OtherComprehensiveIncomeBeforeTaxExcludingExchangeDifferencesonTranslation
703 Deferred income taxes Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract
704 Deferred tax expense on remeasurement of defined benefit liability Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
705 Income tax relating to cash flow hedges of other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
706 Deferred tax expense, tax Concept (Monetary) For Period Debit itp:OtherComprehensiveIncomeTaxExcludingExchangeDifferencesonTranslation
707 Amount net of income taxes Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
708 Deferred tax expense on remeasurement of defined benefit liability Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
709 Other comprehensive income, net of tax, cash flow hedges Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
710 Deferred tax expense, net of tax Concept (Monetary) For Period Credit itp:OtherComprehensiveIncomeNetofTaxExcludingExchangeDifferencesonTranslation
711 Deferred tax expense due to TCJA reduction in US statutory rate Concept (Monetary) For Period Credit itp:TaxCutsandJobsActAmountsAfterReclassificationfromAOCItoRetainedEarningsNetofTax
712 2405406 - Disclosure - INCOME TAXES - Recognized Deferred Tax Assets and Liabilities (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesRecognizedDeferredTaxAssetsAndLiabilitiesDetails
713 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
714 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
715 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
716 Tax credits, losses, carryforwards and other tax deductions Member itp:DeferredTaxAssetTaxCreditsLossesCarryforwardsAndOtherMember
717 Property, plant and equipment Member itp:DeferredTaxAssetPropertyPlantandEquipmentMember
718 Pension and other post-retirement benefits Member itp:DeferredTaxAssetPensionAndPostRetirementBenefitsMember
719 Share-based payments Member itp:DeferredTaxAssetSharebasedPaymentsMember
720 Accounts payable and accrued liabilities Member itp:AccountsPayableAndAccruedLiabilities1Member
721 Goodwill and other intangibles Member itp:DeferredTaxAssetGoodwillAndOtherIntangiblesMember
722 Trade and other receivables Member itp:DeferredTaxAssetTradeAndOtherReceivablesMember
723 Inventories Member itp:DeferredTaxAssetInventoryMember
724 Other Member ifrs-full:OtherTemporaryDifferencesMember
725 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
726 Deferred tax assets Concept (Monetary) As Of Debit itp:DeferredTaxAssetsNetbyJurisdiction
727 Deferred tax liabilities Concept (Monetary) As Of Credit itp:DeferredTaxLiabilitiesNetbyJurisdiction
728 Net Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
729 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
730 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
731 2405407 - Disclosure - INCOME TAXES - Changes in Deferred Tax Assets and Liabilities (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesChangesInDeferredTaxAssetsAndLiabilitiesDetails
732 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
733 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
734 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
735 Deferred tax assets, Tax credits, losses, carryforwards and other tax deductions Member itp:DeferredTaxAssetTaxCreditsLossesCarryforwardsAndOtherMember
736 Deferred tax assets, Property, plant and equipment Member itp:DeferredTaxAssetPropertyPlantandEquipmentMember
737 Deferred tax assets, Pension and other post-retirement benefits Member itp:DeferredTaxAssetPensionAndPostRetirementBenefitsMember
738 Deferred tax assets, Stock-based payments Member itp:DeferredTaxAssetSharebasedPaymentsMember
739 Deferred tax assets, Accounts payable and accrued liabilities Member itp:DeferredTaxAssetsAccountsPayableAndAccruedLiabilitiesMember
740 Deferred tax assets, Goodwill and other intangibles Member itp:DeferredTaxAssetGoodwillAndOtherIntangiblesMember
741 Deferred tax assets, Trade and other receivables Member itp:DeferredTaxAssetTradeAndOtherReceivablesMember
742 Deferred tax assets, Inventories Member itp:DeferredTaxAssetInventoryMember
743 Deferred tax assets, Other Member itp:DeferredTaxAssetOtherTemporaryDifferencesMember
744 Deferred tax assets Member itp:DeferredTaxAssetMember
745 Deferred tax liabilities, Property, plant and equipment Member itp:DeferredTaxLiabilityPropertyPlantandEquipmentMember
746 Deferred tax liabilities, Other Member itp:DeferredTaxLiabilityOtherTemporaryDifferencesMember
747 Deferred tax liabilities, Goodwill and other intangibles Member itp:DeferredTaxLiabilityGoodwillAndOtherIntangiblesMember
748 Deferred tax liabilities Member itp:DeferredTaxLiabilityMember
749 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
750 Deferred tax assets, beginning balance Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
751 Deferred tax liabilities, beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
752 Changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ChangesInDeferredTaxLiabilityAssetAbstract
753 Recognized in earnings (with translation adjustments) Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
754 Recognized in contributed surplus Concept (Monetary) For Period Debit itp:DeferredTaxRelatingToItemsCreditedChargedDirectlyToEquityContributedSurplus
755 Recognized in OCI Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
756 Recognized in deficit Concept (Monetary) For Period Debit itp:DeferredTaxRelatingToItemsCreditedChargedDirectlyToEquityRetainedEarnings
757 Business acquisitions Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset
758 Balance reclassified from accrued liabilities Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughReclassificationFromAccruedLiabilitiesDeferredTaxLiabilityAsset
759 Deferred tax assets, ending balance Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
760 Deferred tax liabilities, ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
761 Deferred tax assets and liabilities, beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
762 Deferred tax assets and liabilities, ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
763 Deferred tax assets and liabilities, recognized in earnings (with translations adjustments) Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesRecognizedInProfitandLoss
764 Deferred tax assets and liabilities, recognized in contributed surplus Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesChargedDirectlyToEquityContributedSurplus
765 Deferred tax assets and liabilities, recognized in other comprehensive income Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesRelatingtoComponentsofOtherComprehensiveIncome
766 Deferred tax assets and liabilities, recognized in deficit Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesChargedDirectlyToEquityRetainedEarnings
767 Deferred tax assets and liabilities, business acquisitions Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesThroughBusinessCombinations
768 Deferred tax assets and liabilities, balance reclassified from accrued liabilities Concept (Monetary) For Period Credit itp:IncreaseDecreaseInDeferredTaxLiabilityAssetExcludingNetExchangeDifferencesThroughReclassificationsFromAccruedLiabilities
769 Impact due to foreign exchange rates, recognized in earnings (with translation adjustments) Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAssetRecognizedinProfitOrLoss
770 Impact due to foreign exchange rates, recognized in contributed surplus Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAssetRelatedToItemsChargedDirectlyToEquityContributedSurplus
771 impact due to foreign exchange rates, recognized in other comprehensive income Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAssetRelatingToComponentsOfOtherComprehensiveIncome
772 Impact due to foreign exchange rates, recognized in deficit Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAssetRelatedToItemsChargedDirectlyToEquityRetainedEarnings
773 2405408 - Disclosure - INCOME TAXES - Deductible Temporary Differences and Unused Tax Losses (Details) Network

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*

 http://www.itape.com/role/IncomeTaxesDeductibleTemporaryDifferencesAndUnusedTaxLossesDetails
774 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
775 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
776 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
777 Tax losses, carryforwards and other tax deductions Member ifrs-full:UnusedTaxLossesMember
778 Share-based payments Member itp:SharebasedCompensationTemporaryDifferencesMember
779 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
780 Unused tax losses for which no deferred tax asset recognised Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
781 2405409 - Disclosure - INCOME TAXES - Expiration Dates Relating to Unused Tax Credits (Details) Network

*

*

 http://www.itape.com/role/IncomeTaxesExpirationDatesRelatingToUnusedTaxCreditsDetails
782 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
783 Income Tax Authority Name [Axis] Axis itp:IncomeTaxAuthorityName1Axis
784 Income Tax Authority Name [Member] Member itp:IncomeTaxAuthorityName1Member
785 Canada Tax Authority Member itp:CanadaTaxAuthorityMember
786 Income Tax Authority [Axis] Axis itp:IncomeTaxAuthority1Axis
787 Income Tax Authority [Member] Member itp:IncomeTaxAuthority1Member
788 Canadian Tax Authority Member itp:DomesticTaxAuthority1Member
789 Tax Expiration Period [Axis] Axis itp:TaxExpirationPeriodAxis
790 Tax Expiration Period [Member] Member itp:TaxExpirationPeriodMember
791 2018 Member itp:TaxExpirationPeriodOneMember
792 2019 Member itp:TaxExpirationPeriodTwoMember
793 2020 Member itp:TaxExpirationPeriodThreeMember
794 2021 Member itp:TaxExpirationPeriodFourMember
795 2022 Member itp:TaxExpirationPeriodFiveMember
796 2023 Member itp:TaxExpirationPeriodSixMember
797 2024 Member itp:TaxExpirationPeriodSevenMember
798 2025 Member itp:TaxExpirationPeriodEightMember
799 2026 Member itp:TaxExpirationPeriodNineMember
800 2027 Member itp:TaxExpirationPeriodTenMember
801 2028 Member itp:TaxExpirationPeriodElevenMember
802 2029 Member itp:TaxExpirationPeriodTwelveMember
803 2030 Member itp:TaxExpirationPeriodThirteenMember
804 2031 Member itp:TaxExpirationPeriodFourteenMember
805 2032 Member itp:TaxExpirationPeriodFifteenMember
806 2033 Member itp:TaxExpirationPeriodSixteenMember
807 2034 Member itp:TaxExpirationPeriodSeventeenMember
808 2035 Member itp:TaxExpirationPeriodEighteenMember
809 2036 Member itp:TaxExpirationPeriodNineteenMember
810 2037 Member itp:TaxExpirationPeriodTwentyMember
811 2038 Member itp:TaxExpirationPeriodTwentyOneMember
812 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
813 Total tax credits derecognized Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
814 2405410 - Disclosure - INCOME TAXES - Expiration Dates of Operating Losses Carried Forward (Details) Network

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*

 http://www.itape.com/role/IncomeTaxesExpirationDatesOfOperatingLossesCarriedForwardDetails
815 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
816 Income Tax Authority Name [Axis] Axis itp:IncomeTaxAuthorityName1Axis
817 Income Tax Authority Name [Member] Member itp:IncomeTaxAuthorityName1Member
818 Canada Tax Authority Member itp:CanadaTaxAuthorityMember
819 Income Tax Authority [Axis] Axis itp:IncomeTaxAuthority1Axis
820 Income Tax Authority [Member] Member itp:IncomeTaxAuthority1Member
821 Federal Member itp:DomesticTaxAuthority1Member
822 Provincial Member itp:StateandLocalJurisdiction1Member
823 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
824 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
825 United States Member country:US
826 Tax Expiration Period [Axis] Axis itp:TaxExpirationPeriodAxis
827 Tax Expiration Period [Member] Member itp:TaxExpirationPeriodMember
828 2028 Member itp:TaxExpirationPeriodElevenMember
829 2029 Member itp:TaxExpirationPeriodTwelveMember
830 2030 Member itp:TaxExpirationPeriodThirteenMember
831 2031 Member itp:TaxExpirationPeriodFourteenMember
832 2037 Member itp:TaxExpirationPeriodTwentyMember
833 2038 Member itp:TaxExpirationPeriodTwentyOneMember
834 2019-2030 Member itp:TaxExpirationPeriodTwentyTwoMember
835 2019-2028 Member itp:TaxExpirationPeriodTwentyThreeMember
836 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
837 Unused tax losses, tax benefits not recognized Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
838 Total tax credits derecognized Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
839 Unused tax losses Concept (Monetary) As Of Debit itp:UnusedTaxLosses
840 Unused losses, tax benefits recognized Concept (Monetary) As Of Debit itp:UnusedTaxLossesForWhichDeferredTaxAssetIsRecognized
841 Capital loss carryforwards Concept (Monetary) As Of Debit itp:CapitalLossesCarryforwards
842 Capital loss carryforwards, tax benefits recognized Concept (Monetary) As Of Debit itp:UnusedTaxLossesCarryforwardForWhichDeferredTaxAssetIsRecognized
843 2406402 - Disclosure - EARNINGS PER SHARE - Weighted Average Number of Common Shares Outstanding (Details) Network

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*

 http://www.itape.com/role/EarningsPerShareWeightedAverageNumberOfCommonSharesOutstandingDetails
844 Implied Table Table

*

*

 implied:Table
845 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
846 Basic (in shares) Concept (Shares) For Period ifrs-full:WeightedAverageShares
847 Effect of stock options (in shares) Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
848 Effect of PSUs (in shares) Concept (Shares) For Period itp:DilutedEffectOfOtherEquityInstrumentsOnNumberOfOrdinaryShares
849 Diluted (in shares) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
850 2406403 - Disclosure - EARNINGS PER SHARE - Additional Items Excluded or Included in Diluted Earnings Calculations (Details) Network

*

*

 http://www.itape.com/role/EarningsPerShareAdditionalItemsExcludedOrIncludedInDilutedEarningsCalculationsDetails
851 Earnings per share [table] Table

*

*

 ifrs-full:EarningsPerShareTable
852 Award Type [Axis] Axis itp:AwardType1Axis
853 Award Type [Member] Member itp:AwardType1Member
854 Stock options Member itp:EmployeeStockOption1Member
855 PSUs Member itp:PerformanceShares1Member
856 Earnings per share [line items] LineItems ifrs-full:EarningsPerShareLineItems
857 Stock options that were anti-dilutive and not included in diluted earnings per share calculations (in shares) Concept (Shares) For Period itp:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1
858 The effect of PSUs included in diluted earnings per share calculations (in shares) Concept (Shares) For Period itp:DilutiveSecuritiesIncludedInComputationOfEarningsPerShareAmount
859 2407402 - Disclosure - INVENTORIES - Composition of Inventories (Details) Network

*

*

 http://www.itape.com/role/InventoriesCompositionOfInventoriesDetails
860 Implied Table Table

*

*

 implied:Table
861 Disclosure of inventories [Abstract] Abstract itp:DisclosureofinventoriesAbstract
862 Raw materials Concept (Monetary) As Of Debit ifrs-full:RawMaterials
863 Work in process Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
864 Finished goods Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
865 Parts and supplies Concept (Monetary) As Of Debit itp:CurrentPartsandSupplies
866 Current inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
867 2407403 - Disclosure - INVENTORIES - Impairments of Inventories (Details) Network

*

*

 http://www.itape.com/role/InventoriesImpairmentsOfInventoriesDetails
868 Disclosure of inventories [Table] Table

*

*

 itp:DisclosureofinventoriesTable
869 Income Statement Location [Axis] Axis itp:IncomeStatementLocation1Axis
870 Income Statement Location [Member] Member itp:IncomeStatementLocation1Member
871 Manufacturing facility closures, restructuring and other related charges Member itp:ExpenseOfRestructuringActivitiesMember
872 Cost of sales Member itp:CostofSalesMember
873 Disclosure of inventories [Line Items] LineItems itp:DisclosureofinventoriesLineItems
874 Recorded impairments of inventories Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
875 Reversal of impairments of inventories Concept (Monetary) For Period ifrs-full:ReversalOfInventoryWritedown
876 Inventories recognized in earnings as an expense Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
877 2408402 - Disclosure - OTHER CURRENT ASSETS (Details) Network

*

*

 http://www.itape.com/role/OtherCurrentAssetsDetails
878 Implied Table Table

*

*

 implied:Table
879 Disclosure of prepayments and other assets [Abstract] Abstract itp:DisclosureofprepaymentsandotherassetsAbstract
880 Income taxes receivable and prepaid Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
881 Sales and other taxes receivable and credits Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
882 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
883 Supplier rebates receivable Concept (Monetary) As Of Debit itp:CurrentSupplierRebateReceivable
884 Reserve for inventory returns Concept (Monetary) As Of Debit itp:CurrentReserveforInventoryReturns
885 Other Concept (Monetary) As Of Debit ifrs-full:OtherCurrentNonfinancialAssets
886 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
887 2409402 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Changes During the Period (Details) Network

*

*

 http://www.itape.com/role/PropertyPlantAndEquipmentChangesDuringPeriodDetails
888 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
889 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
890 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
891 Land Member ifrs-full:LandMember
892 Buildings Member ifrs-full:BuildingsMember
893 Manufacturing equipment Member ifrs-full:MachineryMember
894 Computer equipment and software Member ifrs-full:ComputerEquipmentMember
895 Furniture, office equipment and other Member ifrs-full:FixturesAndFittingsMember
896 Construction in progress Member ifrs-full:ConstructionInProgressMember
897 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
898 Carrying amount [member] Member ifrs-full:CarryingAmountMember
899 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
900 Accumulated depreciation and impairments Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
901 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
902 Reconciliation of changes in property, plant and equipment [abstract] Abstract ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
903 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
904 Additions – separately acquired Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
905 Additions through business acquisitions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
906 Assets placed into service Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment
907 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
908 Category reclassifications Concept (Monetary) For Period Debit itp:IncreaseDecreaseThroughReclassificationsPropertyPlantandEquipment
909 Foreign exchange and other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
910 Depreciation Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
911 Impairments Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
912 Impairment reversals Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
913 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
914 2409403 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) Network

*

*

 http://www.itape.com/role/PropertyPlantAndEquipmentNarrativeDetails
915 Implied Table Table

*

*

 implied:Table
916 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
917 Commitments to suppliers to purchase machinery and equipment Concept (Monetary) As Of Credit ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
918 Losses on disposals of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
919 2409404 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Supplemental information (Details) Network

*

*

 http://www.itape.com/role/PropertyPlantAndEquipmentSupplementalInformationDetails
920 Implied Table Table

*

*

 implied:Table
921 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
922 Interest capitalized to property, plant and equipment Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
923 Weighted average capitalization rates Concept (Percent) For Period ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
924 2410402 - Disclosure - OTHER ASSETS (Details) Network

*

*

 http://www.itape.com/role/OtherAssetsDetails
925 Disclosure of types of insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfTypesOfInsuranceContractsTable
926 Types of insurance contracts [axis] Axis ifrs-full:TypesOfInsuranceContractsAxis
927 Types of insurance contracts [member] Member ifrs-full:InsuranceContractsMember
928 Corporate-owned Life Insurance Held in Trust Member itp:CorporateownedLifeInsuranceHeldinTrustMember
929 Officer's Life Insurance Member itp:OfficersLifeInsuranceMember
930 Disclosure of types of insurance contracts [line items] LineItems ifrs-full:DisclosureOfTypesOfInsuranceContractsLineItems
931 Interest rate swap agreements Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
932 Prepaid software licensing Concept (Monetary) As Of Debit itp:NoncurrentPrepaidSoftwareLicense
933 Deposits Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
934 Other Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentNonfinancialAssets
935 Life insurance Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromInsuranceContracts
936 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
937 2411402 - Disclosure - INTANGIBLE ASSETS (Details) Network

*

*

 http://www.itape.com/role/IntangibleAssetsDetails
938 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
939 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
940 Carrying amount [member] Member ifrs-full:CarryingAmountMember
941 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
942 Accumulated depreciation and impairments Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
943 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
944 Intangibles Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
945 Distribution rights Member itp:DistributionRights1Member
946 Customer contracts Member itp:CustomerContracts1Member
947 License agreements Member ifrs-full:LicencesAndFranchisesMember
948 Customer Lists Member ifrs-full:CustomerrelatedIntangibleAssetsMember
949 Software Member ifrs-full:ComputerSoftwareMember
950 Patents/ Trademarks Member ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember
951 Non-compete agreements Member itp:NoncompeteAgreements1Member
952 Software Licenses Member itp:SoftwareLicensesMember
953 Intangible assets with indefinite useful life [axis] Axis ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeAxis
954 Intangible assets with indefinite useful life [member] Member ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
955 Trademark and trade names Member ifrs-full:BrandNamesMember
956 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
957 Changes in intangible assets other than goodwill [abstract] Abstract ifrs-full:ChangesInIntangibleAssetsOtherThanGoodwillAbstract
958 Beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
959 Additions – separately acquired Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
960 Additions through business acquisitions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
961 Impairments Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
962 Net foreign exchange differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
963 Amortization Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
964 Impairments Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
965 Ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
966 2412402 - Disclosure - IMPAIRMENT OF ASSETS - Narrative (Details) Network

*

*

 http://www.itape.com/role/ImpairmentOfAssetsNarrativeDetails
967 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [table] Table

*

*

 ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitTable
968 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
969 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
970 Polyair Member itp:PolyairInterPackInc.Member
971 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
972 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
973 Individual assets or cash-generating units Member ifrs-full:IndividualAssetsOrCashgeneratingUnitsMember
974 Restructuring Plan [Axis] Axis itp:RestructuringPlan1Axis
975 Restructuring Plan [Member] Member itp:RestructuringPlan1Member
976 TaraTape Closure Member itp:TaraTapeClosureMember
977 South Carolina Flood Member itp:SouthCarolinaFloodMember
978 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
979 Assets [member] Member ifrs-full:ClassesOfAssetsMember
980 Property, plant and equipment Member itp:PropertyPlantAndEquipment1Member
981 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] LineItems ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems
982 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
983 Impairment recognized Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
984 Reversal of impairment recognized Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
985 Recoverable amount Concept (Monetary) As Of Debit ifrs-full:RecoverableAmountOfAssetOrCashgeneratingUnit
986 2412403 - Disclosure - IMPAIRMENT OF ASSETS - Results of Tests Performed, Sensitivity Analysis and Key Assumptions (Details) Network

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 http://www.itape.com/role/ImpairmentOfAssetsResultsOfTestsPerformedSensitivityAnalysisAndKeyAssumptionsDetails
987 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [table] Table

*

*

 ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitTable
988 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
989 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
990 T&F Group Member itp:TapesandFilmsandCantechMember
991 ECP Group Member itp:EngineeredCoatedProductsMember
992 Range [axis] Axis ifrs-full:RangeAxis
993 Ranges [member] Member ifrs-full:RangesMember
994 Bottom of range Member ifrs-full:BottomOfRangeMember
995 Top of range Member ifrs-full:TopOfRangeMember
996 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] LineItems ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems
997 Carrying amount allocated to the asset group: Abstract itp:CarryingAmountAllocatedtoCashGeneratingUnitAbstract
998 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
999 Intangible assets with indefinite useful lives Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife
1000 December 31, 2018 Abstract itp:ResultsofImpairmentTestPerformedAbstract
1001 Recoverable amount Concept (Monetary) As Of Debit ifrs-full:RecoverableAmountOfAssetOrCashgeneratingUnit
1002 Annual revenue growth rate year 1 Concept (Percent) For Period itp:AnnualRevenueGrowthRateYearOne
1003 Annual revenue growth rate year 2 Concept (Percent) For Period itp:AnnualRevenueGrowthRateYearTwo
1004 Annual revenue growth rate year 3 Concept (Percent) For Period itp:AnnualRevenueGrowthRateYearThree
1005 Annual revenue growth rate year 4 Concept (Percent) For Period itp:AnnualRevenueGrowthRateYearFour
1006 Annual revenue growth rate thereafter Concept (Percent) For Period itp:AnnualRevenueGrowthRateYearFive
1007 Discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
1008 Cash flows beyond the five-year period have been extrapolated using a steady growth rate Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
1009 Income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1010 Sensitivity analysis performed using reasonably possible changes in key assumptions Abstract itp:SensitivityAnalysisPerformedUsingReasonablyPossibleChangesInKeyAssumptionsUsedToEstimateImpairmentofCashGeneratingUnitAbstract
1011 Annual revenue growth rate year 1 Concept (Percent) For Period itp:AnnualRevenueGrowthRateChangeInReasonablyPossibleAssumptionsYearOne
1012 Annual revenue growth rate year 2 Concept (Percent) For Period itp:AnnualRevenueGrowthRateChangeInReasonablyPossibleAssumptionsYearTwo
1013 Annual revenue growth rate year 3 Concept (Percent) For Period itp:AnnualRevenueGrowthRateChangeInReasonablyPossibleAssumptionsYearThree
1014 Annual revenue growth rate year 4 Concept (Percent) For Period itp:AnnualRevenueGrowthRateChangeInReasonablyPossibleAssumptionsYearFour
1015 Annual revenue growth rate thereafter Concept (Percent) For Period itp:AnnualRevenueGrowthRateChangeInReasonablyPossibleAssumptionsYearFive
1016 Discount rate Concept (Percent) For Period itp:DiscountRateAppliedToCashFlowProjectionsReasonablyPossibleChangeInAssumptions
1017 Cash flows beyond fiscal year that have been extrapolated using a steady growth rate of Concept (Percent) For Period itp:GrowthRateUsedToExtrapolateCashFlowProjectionsReasonablyPossibleChangeInAssumptions
1018 Income tax rate Concept (Percent) For Period itp:ApplicableTaxRateReasonablyPossibleChangeInAssumptions
1019 Impairment loss due to changes in assumptions Concept (Monetary) For Period Debit itp:ImpairmentLossChangeInReasonablyPossibleAssumptions
1020 2412404 - Disclosure - IMPAIRMENT OF ASSETS - Impairments (Reversals of Impairments) Recognized (Details) Network

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 http://www.itape.com/role/ImpairmentOfAssetsImpairmentsReversalsOfImpairmentsRecognizedDetails
1021 Disclosure of impairment loss recognised or reversed [table] Table

*

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 ifrs-full:DisclosureOfImpairmentLossRecognisedOrReversedTable
1022 Income Statement Location [Axis] Axis itp:IncomeStatementLocation1Axis
1023 Income Statement Location [Member] Member itp:IncomeStatementLocation1Member
1024 Manufacturing facility closures, restructuring and other related charges Member itp:ExpenseOfRestructuringActivitiesMember
1025 Cost of sales Member itp:CostofSalesMember
1026 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1027 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1028 Inventories Member itp:Inventories1Member
1029 Parts and supplies Member itp:CurrentPartsAndSuppliesNotConsideredInventoryMember
1030 Land Member ifrs-full:LandMember
1031 Buildings Member ifrs-full:BuildingsMember
1032 Manufacturing equipment Member ifrs-full:MachineryMember
1033 Furniture, office equipment and other Member ifrs-full:FixturesAndFittingsMember
1034 Computer equipment and software Member ifrs-full:ComputerEquipmentMember
1035 Construction in progress Member ifrs-full:ConstructionInProgressMember
1036 Intangibles Member itp:IntangibleAssetsMember
1037 Disclosure of impairment loss recognised or reversed [line items] LineItems ifrs-full:DisclosureOfImpairmentLossRecognisedOrReversedLineItems
1038 Impairment recognized Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
1039 Impairment reversed Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
1040 2413402 - Disclosure - BORROWINGS (Details) Network

*

*

 http://www.itape.com/role/BorrowingsDetails
1041 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1042 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1043 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1044 Senior Unsecured Notes Member itp:SeniorUnsecuredNotesMember
1045 2018 Credit Facility Member itp:CreditFacility2018Member
1046 2014 Credit Facility Member itp:A2014RevolvingCreditFacilityMember
1047 2018 Powerband Credit Facility Member itp:CreditFacility2018PowerbandMember
1048 Powerband Revolving Line of Credit Member itp:PowerbandRevolvingLineofCreditMember
1049 2018 Capstone Credit Facility Member itp:CreditFacility2018CapstoneMember
1050 Forgivable Government Loan Member itp:ForgivableGovernmentLoanMember
1051 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
1052 Term and other loans Member itp:TermandOtherLoansMember
1053 Range [axis] Axis ifrs-full:RangeAxis
1054 Ranges [member] Member ifrs-full:RangesMember
1055 Weighted average Member ifrs-full:WeightedAverageMember
1056 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1057 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1058 Effective Interest Rate Member itp:EffectiveInterestRateMember
1059 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1060 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1061 Debt issuance costs Member itp:DeferredFinancingCostsMember
1062 Debt issuance costs, net of imputed interest Member itp:DeferredFinancingCostsNetOfImputedInterestMember
1063 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1064 Weighted average effective interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1065 Borrowings, net of imputed interest Concept (Monetary) As Of Credit itp:BorrowingsNetofImputedInterest
1066 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1067 Less: current borrowings Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
1068 Total long-term borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1069 Imputed interest Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1070 2413403 - Disclosure - BORROWINGS - Repayments of Borrowings (Details) Network

*

*

 http://www.itape.com/role/BorrowingsRepaymentsOfBorrowingsDetails
1071 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1072 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1073 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1074 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
1075 Other borrowings Member itp:OtherLongtermBorrowingsMember
1076 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1077 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1078 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
1079 Other borrowings Member itp:OtherLongtermBorrowingsMember
1080 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1081 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1082 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1083 Maturity [axis] Axis ifrs-full:MaturityAxis
1084 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1085 2019 Member ifrs-full:NotLaterThanOneYearMember
1086 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1087 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1088 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1089 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1090 Thereafter Member ifrs-full:LaterThanFiveYearsMember
1091 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1092 Minimum finance lease payments payable Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayable
1093 Interest expense included in minimum lease payments Concept (Monetary) As Of Credit ifrs-full:FutureFinanceChargeOnFinanceLease
1094 Minimum finance lease payments payable, at present value Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayableAtPresentValue
1095 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1096 2413404 - Disclosure - BORROWINGS - Narrative (Details) Network

*

*

 http://www.itape.com/role/BorrowingsNarrativeDetails
1097 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1098 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1099 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1100 Powerband Industries Private Limited Member itp:PowerbandIndustriesPrivateLimitedMember
1101 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1102 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1103 Borrowings Member itp:Borrowings1Member
1104 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1105 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1106 Senior Unsecured Notes Member itp:SeniorUnsecuredNotesMember
1107 2018 Credit Facility Member itp:CreditFacility2018Member
1108 2018 Revolving Credit Facility Member itp:RevolvingCreditFacility2018Member
1109 2018 Term Loan Member itp:TermLoan2018Member
1110 2014 Credit Facility Member itp:A2014RevolvingCreditFacilityMember
1111 2018 Powerband Credit Facility Member itp:CreditFacility2018PowerbandMember
1112 2018 Powerband Demand Term Loan Member itp:CreditFacility2018PowerbandDemandTermLoansMember
1113 2018 Powerband Term Loan Member itp:CreditFacility2018PowerbandTermLoansMember
1114 2018 Powerband Working Capital Loan Facility Member itp:CreditFacility2018PowerbandWorkingCapitalLoanMember
1115 2018 Powerband Bridge Loan Member itp:CreditFacility2018PowerbandBridgeLoanMember
1116 Powerband Revolving Line of Credit Member itp:PowerbandRevolvingLineofCreditMember
1117 2018 Capstone Credit Facility Member itp:CreditFacility2018CapstoneMember
1118 2018 Capstone Term Loan Facility Member itp:CreditFacility2018CapstoneTermLoanMember
1119 2018 Capstone Working Capital Facility Member itp:CreditFacility2018CapstoneWorkingCapitalMember
1120 Forgivable Government Loan Member itp:ForgivableGovernmentLoanMember
1121 Forgivable Government Loan August 2015 Member itp:ForgivableGovernmentLoanAugust2015Member
1122 Forgivable Government Loan February 2018 Member itp:ForgivableGovernmentLoanFebruary2018Member
1123 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
1124 Equipment Finance Agreement Member itp:EquipmentFinanceAgreementMember
1125 Term Loan Member itp:TermLoanMember
1126 Maturity [axis] Axis ifrs-full:MaturityAxis
1127 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1128 Until March 2023 Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1129 2018 Member ifrs-full:LaterThanSixMonthsMember
1130 2019 Member ifrs-full:NotLaterThanOneYearMember
1131 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1132 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1133 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1134 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1135 Range [axis] Axis ifrs-full:RangeAxis
1136 Ranges [member] Member ifrs-full:RangesMember
1137 Bottom of range Member ifrs-full:BottomOfRangeMember
1138 Top of range Member ifrs-full:TopOfRangeMember
1139 Variable Rate1 [Axis] Axis itp:VariableRate1Axis
1140 Variable Rate1 [Member] Member itp:VariableRate1Member
1141 LIBOR Member itp:LondonInterbankOfferedRateLIBOR1Member
1142 IMCLR Member itp:IndianMarginalCostLendingRateMember
1143 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1144 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1145 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1146 Gross carrying amount including letters of credit Member itp:GrossCarryingAmountIncludingLettersOfCreditMember
1147 Debt issuance costs Member itp:DeferredFinancingCostsMember
1148 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1149 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1150 Fixed interest rate Member ifrs-full:FixedInterestRateMember
1151 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1152 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1153 Debt issuance costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
1154 Debt instrument term Concept (xbrli:durationItemType) For Period itp:BorrowingsMaturityTerm
1155 Interest rate on borrowings Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1156 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1157 Borrowings, net of imputed interest Concept (Monetary) As Of Credit itp:BorrowingsNetofImputedInterest
1158 Percentage of purchase price of aggregate principal amount plus accrued interest of debt that can be repurchased Concept (Percent) For Period itp:DebtInstrumentRedemptionPricePercentage1
1159 Maximum borrowing capacity Concept (Monetary) As Of Credit itp:LineofCreditFacilityMaximumBorrowingCapacity1
1160 Maximum borrowing capacity, including effects of foreign translation adjustments Concept (Monetary) As Of Credit itp:LineofCreditFacilityMaximumBorrowingCapacityIncludingEffectsofForeignTranslationAdjustments
1161 Incremental accordion feature Concept (Monetary) As Of Credit itp:LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption
1162 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1163 Standby letters of credit Concept (Monetary) As Of Credit itp:LettersofCreditOutstandingAmount1
1164 Unused borrowing facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1165 Debt covenant, consolidated secured net leverage ratio Concept (Pure) As Of itp:DebtInstrumentCovenantTermsConsolidatedTotalLeverageRatioMaximum
1166 Debt covenant, temporary increase in consolidated total leverage ratio Concept (Pure) As Of itp:DebtInstrumentCovenantTermsTemporaryAllowableIncreaseInConsolidatedTotalLeverageRatio
1167 Debt covenant, number of quarters following acquisition Concept (Integer) As Of itp:DebtInstrumentCovenantTermsNumberofQuartersFollowingAcquisition
1168 Debt covenant, consolidated interest coverage ratio Concept (Pure) As Of itp:DebtInstrumentCovenantTermsConsolidatedInterestCoverageRatioMaximum
1169 Debt covenant, consolidated secured net leverage ratio, actual Concept (Pure) As Of itp:DebtInstrumentCovenantTermsConsolidatedTotalLeverageRatioActual
1170 Debt covenant, consolidated interest coverage ratio, actual Concept (Pure) As Of itp:DebtInstrumentCovenantTermsConsolidatedInterestCoverageRatioActual
1171 Property, plant and equipment, pledged as security Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
1172 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1173 Write off of deferred debt issuance costs Concept (Monetary) For Period Debit itp:WriteoffofDeferredDebtIssuanceCost1
1174 Line of credit increase in borrowing capacity Concept (Monetary) For Period Credit itp:LineofCreditFacilityIncreaseInBorrowingCapacity1
1175 Debt covenant, acquisition price Concept (Monetary) As Of Credit itp:DebtInstrumentCovenantTermsAcquisitionPrice
1176 Debt covenant, consolidated debt service ratio Concept (Pure) For Period itp:DebtInstrumentCovenantTermsConsolidatedDebtServiceRatioMinimum
1177 Debt covenant, aggregate amount of capital expenditures on any fiscal year Concept (Monetary) For Period Credit itp:DebtInstrumentCovenantTermsAnnualAggregateAmountofCapitalExpenditures
1178 Period for lender to give notice to withdraw commitment Concept (xbrli:durationItemType) For Period itp:LineofCreditFacilityPeriodforLendertoWithdrawCommitment
1179 Debt covenant, net worth ratio Concept (Pure) As Of itp:DebtInstrumentCovenantTermsDebtToNetWorthRatioMaximum
1180 Debt covenant, debt to net worth ratio, actual Concept (Pure) As Of itp:DebtInstrumentCovenantTermsDebtToNetWorthRatioActual
1181 Bullet installment payment period Concept (xbrli:durationItemType) For Period itp:DebtInstrumentBulletInstallmentPaymentPeriod
1182 Monthly installment payment period Concept (xbrli:durationItemType) For Period itp:DebtInstrumentMonthlyInstallmentPaymentPeriod
1183 Unused borrowing facilities, committed Concept (Monetary) As Of Credit itp:Undrawnborrowingfacilitiescommitted
1184 Unused borrowing facilities, uncommitted Concept (Monetary) As Of Credit itp:Undrawnborrowingfacilitiesuncommitted
1185 Debt instrument, percentage of principal amount forgivable Concept (Percent) As Of itp:DebtInstrumentPercentageofPrincipalAmountForgivable
1186 Discount rate used to estimate fair value on interest-free loan Concept (Percent) As Of itp:BorrowingsDiscountRate
1187 Deferred income Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1188 Interest expense (less than) Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
1189 Lump sum payment under finance lease Concept (Monetary) As Of Credit itp:FinanceLeaseLumpSumPayment
1190 2413405 - Disclosure - BORROWINGS - Finance Lease Liabilities (Details) Network

*

*

 http://www.itape.com/role/BorrowingsFinanceLeaseLiabilitiesDetails
1191 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1192 Range [axis] Axis ifrs-full:RangeAxis
1193 Ranges [member] Member ifrs-full:RangesMember
1194 Bottom of range Member ifrs-full:BottomOfRangeMember
1195 Top of range Member ifrs-full:TopOfRangeMember
1196 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1197 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
1198 Buildings Member ifrs-full:BuildingsMember
1199 Manufacturing equipment Member ifrs-full:MachineryMember
1200 Furniture, office equipment, and other Member itp:FurnitureOfficeEquipmentandOtherMember
1201 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1202 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1203 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
1204 Equipment Finance Agreement Member itp:EquipmentFinanceAgreementMember
1205 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1206 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1207 Fixed interest rate Member ifrs-full:FixedInterestRateMember
1208 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1209 Recognised finance lease as assets Concept (Monetary) As Of Debit ifrs-full:RecognisedFinanceLeaseAsAssets
1210 Net book value of equipment securing finance lease liabilities Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
1211 Monthly lease installment payments Concept (Monetary) As Of Credit itp:MonthlyMinimumFinanceLeasePaymentsPayable
1212 Lump sum payment under finance lease Concept (Monetary) As Of Credit itp:FinanceLeaseLumpSumPayment
1213 Maximum borrowing capacity Concept (Monetary) As Of Credit itp:LineofCreditFacilityMaximumBorrowingCapacity1
1214 Debt instrument term Concept (xbrli:durationItemType) For Period itp:BorrowingsMaturityTerm
1215 Interest rate Concept (Percent) As Of itp:FinanceLeaseInterestRate
1216 2413406 - Disclosure - BORROWINGS - Liabilities Arising From Financing Activities (Details) Network

*

*

 http://www.itape.com/role/BorrowingsLiabilitiesArisingFromFinancingActivitiesDetails
1217 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
1218 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
1219 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
1220 Borrowings, non-current (excluding finance lease liabilities) Member ifrs-full:LongtermBorrowingsMember
1221 Borrowings, current (excluding finance lease liabilities) Member ifrs-full:ShorttermBorrowingsMember
1222 Finance lease liabilities Member ifrs-full:LeaseLiabilitiesMember
1223 Disclosure of reconciliation of liabilities arising from financing activities [line items] LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
1224 Beginning balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1225 Cash flows: Abstract ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract
1226 Proceeds from borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1227 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1228 Payments of debt issue costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
1229 Non-cash: Abstract itp:NonCashChangesInLiabilitiesArisingFromFinancingActivitiesAbstract
1230 New finance leases Concept (Monetary) For Period Credit itp:IncreaseDecreaseSeparatelyAcquiredNoncashLiabilitiesArisingFromFinancingActivities
1231 Additions through business acquisitions Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughBusinessAcquisitionsNoncashLiabilitiesArisingFromFinancingActivities
1232 Amortization of debt issuance costs Concept (Monetary) For Period Debit itp:AmortizationofDebtIssuanceCosts1
1233 Write-off of debt issuance costs Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughWriteoffOfDebtIssueCostsLiabilitiesArisingFromFinancingActivities
1234 Foreign exchange and other Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1235 Reclassification Concept (Monetary) For Period Credit itp:IncreaseDecreaseReclassificationsNoncashLiabilitiesArisingFromFinancingActivities
1236 Ending balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1237 2414402 - Disclosure - PROVISIONS AND CONTINGENT LIABILITIES - Reconciliation of Company's provisions (Details) Network

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*

 http://www.itape.com/role/ProvisionsAndContingentLiabilitiesReconciliationOfCompanysProvisionsDetails
1238 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1239 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1240 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1241 Environmental Member ifrs-full:OtherEnvironmentRelatedProvisionMember
1242 Restoration Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
1243 Termination benefits and other Member itp:TerminationBenefitsandOtherMember
1244 Litigation Member ifrs-full:LegalProceedingsProvisionMember
1245 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1246 Reconciliation of changes in other provisions [abstract] Abstract ifrs-full:ReconciliationOfChangesInOtherProvisionsAbstract
1247 Beginning balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
1248 Provisions assumed through business acquisitions Concept (Monetary) For Period Credit ifrs-full:AcquisitionsThroughBusinessCombinationsOtherProvisions
1249 Additional provisions Concept (Monetary) For Period Credit ifrs-full:AdditionalProvisionsOtherProvisions
1250 Amounts used Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
1251 Amounts reversed Concept (Monetary) For Period Debit ifrs-full:UnusedProvisionReversedOtherProvisions
1252 Net foreign exchange differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
1253 Ending balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
1254 Amount presented as current Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
1255 Amount presented as non-current Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
1256 2414403 - Disclosure - PROVISIONS AND CONTINGENT LIABILITIES - Narrative (Details) Network

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*

 http://www.itape.com/role/ProvisionsAndContingentLiabilitiesNarrativeDetails
1257 Disclosure of other provisions [table] Table

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*

 ifrs-full:DisclosureOfOtherProvisionsTable
1258 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
1259 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
1260 Legal proceedings contingent liability Member ifrs-full:LegalProceedingsContingentLiabilityMember
1261 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1262 Settlement paid Concept (Monetary) For Period Credit itp:PaymentsForLegalSettlements1
1263 Expected reimbursements on provisions Concept (Monetary) As Of Debit ifrs-full:ExpectedReimbursementOtherProvisions
1264 Contingent assets recognized for expected reimbursements of provisions Concept (Monetary) As Of Debit ifrs-full:AssetRecognisedForExpectedReimbursementOtherProvisions
1265 2415402 - Disclosure - OTHER LIABILITIES (Details) Network

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*

 http://www.itape.com/role/OtherLiabilitiesDetails
1266 Implied Table Table

*

*

 implied:Table
1267 Disclosure of other liabilities [Abstract] Abstract itp:DisclosureofotherliabilitiesAbstract
1268 Deferred employee compensation Concept (Monetary) As Of Credit itp:NoncurrentDeferredLiabilityForEmployeeBenefitsAndOthers
1269 Amounts due to former shareholders of Polyair Concept (Monetary) As Of Credit itp:NoncurrentPayablesArisingfromBusinessCombination
1270 Other Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentNonfinancialLiabilities
1271 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1272 2416402 - Disclosure - CAPITAL STOCK - Narrative (Details) Network

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*

 http://www.itape.com/role/CapitalStockNarrativeDetails
1273 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1274 Award Date [Axis] Axis itp:AwardDate1Axis
1275 Award Date [Domain] Member itp:AwardDate1Domain
1276 Prior to December 2017 Member itp:GrantDatePriortoDecember2017Member
1277 Subsequent to December 2017 Member itp:GrantDateSubsequenttoDecember2017Member
1278 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1279 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1280 Class A preferred shares Member ifrs-full:PreferenceSharesMember
1281 Share Repurchase Program1 [Axis] Axis itp:ShareRepurchaseProgram1Axis
1282 Share Repurchase Program1 [Member] Member itp:ShareRepurchaseProgram1Member
1283 NICB Member itp:NCIBShareRepurchaseProgramMember
1284 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1285 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1286 Major ordinary share transactions Member ifrs-full:MajorOrdinaryShareTransactionsMember
1287 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1288 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1289 RSUs Member itp:RestrictedShareUnitsRSUsMember
1290 Target Shares Member itp:PerformanceShareUnitsPSUsTargetSharesMember
1291 DSUs Member itp:DeferredShareUnitsDSUMember
1292 SARs Member itp:ShareAppreciationRightsSARMember
1293 Vesting [Axis] Axis itp:Vesting1Axis
1294 Vesting [Member] Member itp:Vesting1Member
1295 Year one Member itp:TrancheOneMember
1296 Year two Member itp:TrancheTwoMember
1297 Year three Member itp:TrancheThreeMember
1298 Year four Member itp:TrancheFourMember
1299 Title of Individual [Axis] Axis itp:TitleofIndividual1Axis
1300 Relationship to Entity [Member] Member itp:RelationshiptoEntity1Member
1301 Key employees and executives Member itp:KeyEmployeesandExecutivesMember
1302 Directors non-officers Member itp:DirectorsNonofficersMember
1303 Range [axis] Axis ifrs-full:RangeAxis
1304 Ranges [member] Member ifrs-full:RangesMember
1305 Bottom of range Member ifrs-full:BottomOfRangeMember
1306 Top of range Member ifrs-full:TopOfRangeMember
1307 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1308 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1309 Number of shares outstanding (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1310 Number of common shares authorized for repurchase (in shares) Concept (Shares) As Of itp:StockRepurchaseProgramNumberofSharesAuthorizedtobeRepurchased1
1311 Number of shares remained available for repurchase (in shares) Concept (Shares) As Of itp:StockRepurchaseProgramRemainingNumberofSharesAuthorizedtobeRepurchased1
1312 Number of other equity instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1313 Expiration period of awards Concept (xbrli:durationItemType) For Period itp:EmployeeStockOwnershipPlanESOPExpirationPeriod
1314 Awards vesting rights percentage Concept (Percent) For Period itp:EmployeeStockOwnershipPlanESOPAwardVestingRightsPercentage
1315 Stock options vesting period Concept (xbrli:durationItemType) For Period itp:EmployeeStockOwnershipPlanESOPVestingPeriod
1316 Weighted average fair value at exercise of stock options exercised (in dollars per share) Concept (Share) For Period itp:WeightedAverageFairValueatExerciseDateofShareOptionsExercisedinSharebasedPaymentArrangement
1317 Weighted average fair value of stock options granted (in USD per share) Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
1318 Weighted average fair value at measurement date, other equity instruments granted Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
1319 Number of other equity instruments forfeited in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1320 Number of other equity instruments outstanding in share-based payment arrangement Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1321 Weighted average fair value per award outstanding (in dollars per share) Concept (Monetary) As Of Credit itp:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsOutstanding
1322 Awards percentage based in total shareholder return (TSR) Concept (Percent) As Of itp:OtherEquityInstrumentsNumberofSharesEarnedAsPercentageofTotalGranted
1323 Awards vesting percentage Concept (Percent) As Of itp:OtherEquityInstrumentsVestingPercentage
1324 Awards percentage based on average returns on invested capital (ROIC) Concept (Percent) As Of itp:OtherEquityInstrumentsNumberofSharesEarnedAsPercentageofReturnofInvestedCapitalROIC
1325 Awards percentage based on volume weighted average trading price (VWAP) Concept (Percent) As Of itp:OtherEquityInstrumentsWeightedAverageFairValueAsPercentageofVolumeWeightedAverageTradingPriceVWAP
1326 Awards threshold consecutive trading days Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsThresholdConsecutiveTradingDays
1327 Stock price as of estimation date (in CDN per share) Concept (Monetary) As Of Credit itp:SharePrice1
1328 Awards percentage based on monte carlo simulation model Concept (Percent) As Of itp:OtherEquityInstrumentsWeightedAverageFairValueAsPercentageUsingMonteCarloSimulationModel
1329 Other equity instruments, expiration period Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsAwardExpirationPeriod
1330 Other equity instruments vesting period Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsAwardVestingPeriod
1331 Weighted average exercise price of other equity instruments exercised in share-based payment arrangement (in CND per share) Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1332 Other equity instruments, vesting rights percentage Concept (Percent) For Period itp:OtherEquityInstrumentsAwardVestingRightsPercentage
1333 Granted, Number of options (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1334 2416403 - Disclosure - CAPITAL STOCK - Cash Dividends Paid (Details) Network

*

*

 http://www.itape.com/role/CapitalStockCashDividendsPaidDetails
1335 Implied Table Table

*

*

 implied:Table
1336 Disclosure of share capital, reserves and other equity interest [Abstract] Abstract itp:DisclosureofsharecapitalreservesandotherequityinterestAbstract
1337 Per common share amount (in dollars per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
1338 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1339 Number of shares outstanding (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1340 Aggregate payment Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1341 2416404 - Disclosure - CAPITAL STOCK - Share Repurchases (Details) Network

*

*

 http://www.itape.com/role/CapitalStockShareRepurchasesDetails
1342 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1343 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1344 Equity [member] Member ifrs-full:EquityMember
1345 Carrying value of the common shares repurchased Member ifrs-full:IssuedCapitalMember
1346 Share repurchase premium Member ifrs-full:RetainedEarningsMember
1347 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1348 Common shares repurchased (in shares) Concept (Shares) For Period itp:TreasuryStockSharesAcquired1
1349 Average price per common share including commissions (in cdn per share) Concept (Share) For Period itp:AveragePriceTreasurySharesRepurchasedIncludingCommissions
1350 Total purchase price including commissions Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions
1351 2416405 - Disclosure - CAPITAL STOCK - Changes in Number of Stock Options Outstanding (Details) Network

*

*

 http://www.itape.com/role/CapitalStockChangesInNumberOfStockOptionsOutstandingDetails
1352 Implied Table Table

*

*

 implied:Table
1353 Disclosure of share capital, reserves and other equity interest [Abstract] Abstract itp:DisclosureofsharecapitalreservesandotherequityinterestAbstract
1354 Balance, beginning of year, Weighted average exercise price (in CDN per share) Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1355 Granted, Weighted average exercise price (in CDN per share) Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1356 Exercised, Weighted average exercise price (in CDN per share) Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
1357 Forfeited, Weighted average exercise price (in CDN per share) Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
1358 Balance, end of year, Weighted average exercise price (in CDN per share) Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1359 Balance, beginning of year, Number of options (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1360 Granted, Number of options (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1361 Exercised, Number of options (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1362 Forfeited, Number of options (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1363 Balance, end of year, Number of options (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1364 2416406 - Disclosure - CAPITAL STOCK - Stock Options Outstanding and Exercisable (Details) Network

*

*

 http://www.itape.com/role/CapitalStockStockOptionsOutstandingAndExercisableDetails
1365 Disclosure of range of exercise prices of outstanding share options [table] Table

*

*

 ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable
1366 Ranges of exercise prices for outstanding share options [axis] Axis ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis
1367 Ranges of exercise prices for outstanding share options [member] Member ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember
1368 $12.04 to $12.14 Member itp:ExercisePriceRangeOneMember
1369 $12.55 to $14.34 Member itp:ExercisePriceRangeTwoMember
1370 $21.76 Member itp:ExercisePriceRangeThreeMember
1371 $1.55 to $1.80 Member itp:ExercisePriceRangeFourMember
1372 $12.04 to $14.34 Member itp:ExercisePriceRangeFiveMember
1373 Range [axis] Axis ifrs-full:RangeAxis
1374 Ranges [member] Member ifrs-full:RangesMember
1375 Bottom of range Member ifrs-full:BottomOfRangeMember
1376 Top of range Member ifrs-full:TopOfRangeMember
1377 Disclosure of range of exercise prices of outstanding share options [line items] LineItems ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems
1378 Exercise price (in CDN per share) Concept (Monetary) As Of ifrs-full:ExercisePriceOfOutstandingShareOptions
1379 Options outstanding, Number (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1380 Options outstanding, Weighted average contractual life (years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
1381 Options outstanding, Weighted average exercise price (in CDN per share) Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1382 Options exercisable, Number (in shares) Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1383 Options exercisable, Weighted average exercise price (in CDN per share) Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
1384 2416407 - Disclosure - CAPITAL STOCK - Fair Value Inputs of Stock Options Granted (Details) Network

*

*

 http://www.itape.com/role/CapitalStockFairValueInputsOfStockOptionsGrantedDetails
1385 Implied Table Table

*

*

 implied:Table
1386 Disclosure of share capital, reserves and other equity interest [Abstract] Abstract itp:DisclosureofsharecapitalreservesandotherequityinterestAbstract
1387 Expected life (years) Concept (xbrli:durationItemType) For Period itp:Optionlifeshareoptionsgranted1
1388 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1389 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1390 Expected dividends Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1391 Stock price at grant date (in CDN per share) Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
1392 Exercise price of awards (in CDN per share) Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1393 Foreign exchange rate USD to CDN Concept (Decimal) As Of itp:ForeignExchangeRateShareOptionsGranted
1394 2416408 - Disclosure - CAPITAL STOCK - Performance Percentage PSUs Granted (Details) Network

*

*

 http://www.itape.com/role/CapitalStockPerformancePercentagePsusGrantedDetails
1395 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1396 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1397 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1398 Target Shares Member itp:PerformanceShareUnitsPSUsTargetSharesMember
1399 PSUs Member itp:PerformanceShareUnitsPSUMember
1400 Vesting [Axis] Axis itp:Vesting1Axis
1401 Vesting [Member] Member itp:Vesting1Member
1402 76th percentile or higher Member itp:VestingPercentageOneMember
1403 51st-75th percentile Member itp:VestingPercentageTwoMember
1404 25th-50th percentile Member itp:VestingPercentageThreeMember
1405 Less than the 25th percentile Member itp:VestingPercentageFourMember
1406 90th percentile or higher Member itp:VestingPercentageFiveMember
1407 75th percentile Member itp:VestingPercentageSixMember
1408 50th percentile Member itp:VestingPercentageSevenMember
1409 25th percentile Member itp:VestingPercentageEightMember
1410 Less than the 25th percentile Member itp:VestingPercentageNineMember
1411 1st Tier Member itp:VestingPercentageTenMember
1412 2nd Tier Member itp:VestingPercentageElevenMember
1413 3rd Tier Member itp:VestingPercentageTwelveMember
1414 4th Tier Member itp:VestingPercentageThirteenMember
1415 Award Date [Axis] Axis itp:AwardDate1Axis
1416 Award Date [Domain] Member itp:AwardDate1Domain
1417 Prior to December 2017 Member itp:GrantDatePriortoDecember2017Member
1418 Subsequent to December 2017 Member itp:GrantDateSubsequenttoDecember2017Member
1419 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1420 TSR performance percentage Concept (Percent) As Of itp:OtherEquityInstrumentsNumberofSharesEarnedAsPercentageofTotalGranted
1421 ROIC performance percentage Concept (Percent) As Of itp:OtherEquityInstrumentsNumberofSharesEarnedAsPercentageofReturnofInvestedCapitalROIC
1422 2416409 - Disclosure - CAPITAL STOCK - Fair Value Inputs of PSUs Granted (Details) Network

*

*

 http://www.itape.com/role/CapitalStockFairValueInputsOfPsusGrantedDetails
1423 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1424 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1425 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1426 PSUs Member itp:PerformanceShareUnitsPSUMember
1427 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1428 Expected life Concept (xbrli:durationItemType) For Period itp:OtherEquityInstrumentsLifeOtherEquityInstrumentsGranted
1429 Expected volatility Concept (Percent) For Period itp:ExpectedVolatilityOtherEquityInstrumentsGranted
1430 US risk-free interest rate Concept (Percent) For Period itp:RiskFreeInterestRateOtherEquityInstrumentsGranted
1431 Canadian risk-free rate Concept (Percent) For Period itp:ForeignRiskFreeInterestRateOtherEquityInstrumentsGranted
1432 Expected dividends (in CDN per share) Concept (Monetary) For Period Credit itp:ExpectedDividendsOtherEquityInstrumentsGranted
1433 Performance period starting price (in CDN per share) Concept (Monetary) For Period Credit itp:GrantDateSharePriceOtherEquityInstrumentsGranted
1434 Stock price as of estimation date (in CDN per share) Concept (Monetary) As Of Credit itp:SharePrice1
1435 2416410 - Disclosure - CAPITAL STOCK - Summarized Information About PSUs (Details) Network

*

*

 http://www.itape.com/role/CapitalStockSummarizedInformationAboutPsusDetails
1436 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1437 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1438 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1439 PSUs Member itp:PerformanceShareUnitsPSUMember
1440 Target Shares Member itp:PerformanceShareUnitsPSUsTargetSharesMember
1441 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1442 PSUs granted (in shares) Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1443 Weighted average fair value granted (in dollars per share) Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
1444 Awards forfeited/cancelled (in shares) Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1445 PSUs added by performance factor (in shares) Concept (Decimal) For Period itp:NumberOfOtherEquityInstrumentsAddedByPerformanceFactorInSharebasedPaymentArrangement
1446 PSUs settled (in shares) Concept (Decimal) For Period itp:NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
1447 Weighted average fair value per PSU settled (in dollars per share) Concept (Monetary) As Of Debit itp:WeightedAverageFairValueOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
1448 Cash payment on settlement Concept (Monetary) For Period Credit itp:SettlementForSharebasedPaymentArrangement
1449 Awards percentage based in total shareholder return (TSR) Concept (Percent) As Of itp:OtherEquityInstrumentsNumberofSharesEarnedAsPercentageofTotalGranted
1450 2416411 - Disclosure - CAPITAL STOCK - PSUs Outstanding (Details) Network

*

*

 http://www.itape.com/role/CapitalStockPsusOutstandingDetails
1451 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1452 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1453 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1454 PSUs Member itp:PerformanceShareUnitsPSUMember
1455 Award Date [Axis] Axis itp:AwardDate1Axis
1456 Award Date [Domain] Member itp:AwardDate1Domain
1457 March 21, 2016 Member itp:GrantDateMarch212016Member
1458 December 20, 2016 Member itp:GrantDateDecember202016Member
1459 March 20, 2017 Member itp:GrantDateMarch202017Member
1460 March 21, 2018 Member itp:GrantDateMarch2018Member
1461 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1462 Awards outstanding (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1463 Weighted average fair value per award outstanding (in dollars per share) Concept (Monetary) As Of Credit itp:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsOutstanding
1464 Awards vesting percentage Concept (Percent) As Of itp:OtherEquityInstrumentsVestingPercentage
1465 2416412 - Disclosure - CAPITAL STOCK - Summarized Information About DSUs (Details) Network

*

*

 http://www.itape.com/role/CapitalStockSummarizedInformationAboutDsusDetails
1466 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1467 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1468 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1469 DSUs Member itp:DeferredShareUnitsDSUMember
1470 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1471 Number of other equity instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1472 Weighted average fair value granted (in dollars per share) Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
1473 Shares issued upon DSU settlement (in shares) Concept (Decimal) For Period itp:NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
1474 Weighted average fair value per RSU settled (in dollars per share) Concept (Monetary) As Of Debit itp:WeightedAverageFairValueOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
1475 Cash payments on exercise Concept (Monetary) For Period Credit itp:SettlementForSharebasedPaymentArrangement
1476 Awards outstanding (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1477 Weighted average fair value per award outstanding (in dollars per share) Concept (Monetary) As Of Credit itp:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsOutstanding
1478 2416413 - Disclosure - CAPITAL STOCK - SARs Activity (Details) Network

*

*

 http://www.itape.com/role/CapitalStockSarsActivityDetails
1479 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1480 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1481 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1482 SARs Member itp:ShareAppreciationRightsSARMember
1483 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1484 Awards exercised (in shares) Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1485 Cash payments on exercise Concept (Monetary) For Period Credit itp:SettlementForSharebasedPaymentArrangement
1486 Awards forfeited/cancelled (in shares) Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1487 2416414 - Disclosure - CAPITAL STOCK - Summarized Information About SARs (Details) Network

*

*

 http://www.itape.com/role/CapitalStockSummarizedInformationAboutSarsDetails
1488 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1489 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1490 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1491 SARs Member itp:ShareAppreciationRightsSARMember
1492 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1493 Awards outstanding (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1494 Weighted average fair value per award outstanding (in dollars per share) Concept (Monetary) As Of Credit itp:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsOutstanding
1495 Aggregate intrinsic value of outstanding vested awards Concept (Monetary) As Of Credit ifrs-full:IntrinsicValueOfLiabilitiesFromSharebasedPaymentTransactionsForWhichCounterpartysRightToCashOrOtherAssetsVested2011
1496 2416415 - Disclosure - CAPITAL STOCK - Share-based Compensation Expense (Benefit) in SG&A (Details) Network

*

*

 http://www.itape.com/role/CapitalStockShareBasedCompensationExpenseBenefitInSgaDetails
1497 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1498 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1499 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1500 Stock options Member itp:EmployeeStockOption1Member
1501 PSUs Member itp:PerformanceShareUnitsPSUMember
1502 DSUs Member itp:DeferredShareUnitsDSUMember
1503 RSUs Member itp:RestrictedShareUnitsRSUsMember
1504 SARs Member itp:ShareAppreciationRightsSARMember
1505 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1506 Share-based compensation expense (Note 16) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1507 2416416 - Disclosure - CAPITAL STOCK - Share-based Liabilities (Details) Network

*

*

 http://www.itape.com/role/CapitalStockShareBasedLiabilitiesDetails
1508 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1509 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1510 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1511 PSUs Member itp:PerformanceShareUnitsPSUMember
1512 DSUs Member itp:DeferredShareUnitsDSUMember
1513 SARs Member itp:ShareAppreciationRightsSARMember
1514 RSUs Member itp:RestrictedShareUnitsRSUsMember
1515 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1516 Share-based compensation liabilities, current Concept (Monetary) As Of Credit itp:LiabilitiesFromShareBasedPaymentTransactionsCurrent
1517 Share-based compensation liabilities, non-current Concept (Monetary) As Of Credit itp:LiabilitiesFromSharebasedPaymentTransactionsNoncurrent
1518 2416417 - Disclosure - CAPITAL STOCK - Change in Contributed Surplus (Details) Network

*

*

 http://www.itape.com/role/CapitalStockChangeInContributedSurplusDetails
1519 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1520 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1521 Equity [member] Member ifrs-full:EquityMember
1522 Contributed surplus Member ifrs-full:SharePremiumMember
1523 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1524 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1525 Stock options Member itp:EmployeeStockOption1Member
1526 DSUs Member itp:DeferredShareUnitsDSUMember
1527 PSUs Member itp:PerformanceShareUnitsPSUMember
1528 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1529 Change in excess tax benefit on exercised share-based awards Concept (Monetary) For Period Credit itp:IncreaseDecreaseInExcessTaxBenefitThroughExerciseOfShareBasedAwardsEquity
1530 Change in excess tax benefit on outstanding share-based awards Concept (Monetary) For Period Credit itp:IncreaseDecreaseInExcessTaxBenefitThroughOutstandingShareBasedAwardsEquity
1531 Share-based compensation expense credited to capital on options exercised Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughSharebasedPaymentTransactionsOptionsExercisedEquity
1532 Share-based compensation expense Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
1533 Change in contributed surplus Concept (Monetary) For Period Credit itp:IncreaseDecreaseInEquityExcludingComprehensiveIncome
1534 2417402 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Narrative (Details) Network

*

*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillNarrativeDetails
1535 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1536 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1537 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1538 Capstone Member itp:CapstoneInvestmentMember
1539 Legal Entity [Axis] Axis dei:LegalEntityAxis
1540 Entity [Domain] Member dei:EntityDomain
1541 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1542 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1543 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1544 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1545 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1546 Maiweave Acquisition Member itp:MaiweaveLLCMember
1547 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1548 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1549 Equity [member] Member ifrs-full:EquityMember
1550 Non-controlling interest Member ifrs-full:NoncontrollingInterestsMember
1551 Deficit Member ifrs-full:RetainedEarningsMember
1552 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1553 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1554 North America Member itp:NorthAmerica1Member
1555 Income Statement Location [Axis] Axis itp:IncomeStatementLocation1Axis
1556 Income Statement Location [Member] Member itp:IncomeStatementLocation1Member
1557 Selling, general and administrative expense Member itp:SellingGeneralAndAdministrativeExpense1Member
1558 Balance Sheet Location [Axis] Axis itp:BalanceSheetLocation1Axis
1559 Balance Sheet Location [Member] Member itp:BalanceSheetLocationMember
1560 Accounts payable and accrued liabilities Member itp:TradeAndOtherCurrentPayablesMember
1561 Other liabilities Member itp:OtherNoncurrentLiabilities1Member
1562 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1563 Number of ownership shares acquired from subsidiary Concept (Shares) As Of itp:Numberofownershipsharesacquiredfromsubsidiary
1564 Cash flows from losing control of subsidiaries or other businesses, classified as investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
1565 Purchase of interests in associates Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
1566 Proportion of Ownership Interest and Voting Power Held as of: Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1567 Cash consideration transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1568 Outstanding obligations or indemnifications Concept (Monetary) As Of Credit ifrs-full:ContingentLiabilitiesRecognisedInBusinessCombination
1569 Proportion of ownership interests held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
1570 Increase (decrease) to equity as result of share-purchase activity of non-controlling interest Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
1571 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
1572 Professional fees Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
1573 Fair value of contribution in-kind made by non-controlling shareholders Concept (Monetary) As Of Credit itp:ContributionInKindFairValue
1574 Acquisition-related costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
1575 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1576 Consideration transferred, acquisition-date fair value Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1577 Number of manufacturing facilities Concept (Integer) As Of itp:NumberOfManufacturingFacilities
1578 Number of distribution centers Concept (Integer) As Of itp:NumberofDistributionCenters
1579 Escrow deposit Concept (Monetary) As Of Debit itp:EscrowDeposit1
1580 2417403 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Balance Sheet of Capstone Subsequent to Investment (Details) Network

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1581 Disclosure of subsidiaries [table] Table

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*

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1582 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1583 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1584 Capstone Member itp:CapstoneInvestmentMember
1585 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1586 Current assets Abstract ifrs-full:CurrentAssetsAbstract
1587 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
1588 Other assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1589 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1590 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
1591 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1592 Borrowings, current Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
1593 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1594 Cash consideration transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1595 Plus: remaining non-controlling interest Concept (Monetary) For Period Debit itp:RecognitionOfNoncontrollingPurchaseofInvestment
1596 Fair value of net assets Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiaries
1597 2417404 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Fair Value of Net Identifiable Assets Acquired (Details) Network

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*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillFairValueOfNetIdentifiableAssetsAcquiredDetails
1598 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1599 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1600 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1601 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1602 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1603 Maiweave Acquisition Member itp:MaiweaveLLCMember
1604 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1605 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
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1607 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
1608 Trade receivables Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsRecognisedAsOfAcquisitionDate
1609 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
1610 Parts and supplies Concept (Monetary) As Of Debit itp:CurrentPartsAndSuppliesNotConsideredInventoryRecognizedatAcquisitionDate
1611 Other current assets Concept (Monetary) As Of Debit itp:OtherCurrentAssetsRecognisedAsOfAcquisitionDate
1612 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
1613 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
1614 Customer list Concept (Monetary) As Of Debit ifrs-full:CustomerrelatedIntangibleAssetsRecognisedAsOfAcquisitionDate
1615 Non-compete agreement Concept (Monetary) As Of Debit itp:NoncompeteAgreementsIntangibleAssetsRecognisedAsOfAcquisitionDate
1616 Other assets Concept (Monetary) As Of Debit itp:OtherNoncurrentAssetsRecognizedasofAcquisitionDate
1617 Identifiable assets acquired Concept (Monetary) As Of Debit itp:IdentifiableAssetsRecognisedAsOfAcquisitionDate
1618 Current liabilities Abstract itp:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilities1Abstract
1619 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
1620 Provisions, current Concept (Monetary) As Of Credit itp:CurrentProvisionsRecognizedAsOfAcquisitionDate
1621 Borrowings, current Concept (Monetary) As Of Credit itp:CurrentBorrowingsRecognisedAsOfAcquisitionDate
1622 Borrowings, non-current Concept (Monetary) As Of Credit itp:NoncurrentBorrowingsRecognisedAsOfAcquisitionDate
1623 Pension and other post-retirement benefits Concept (Monetary) As Of Credit itp:PensionAndOtherPostretirementBenefitsRecognisedAsofAcquisitionDate
1624 Deferred tax liability Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
1625 Provisions, non-current Concept (Monetary) As Of Credit itp:NoncurrentProvisionsRecognizedAsOfAcquisitionDate
1626 Other liabilities Concept (Monetary) As Of Credit itp:OtherNoncurrentLiabilitiesRecognizedasofAcquisitionDate
1627 Identifiable liabilities recognised Concept (Monetary) As Of Credit itp:IdentifiableLiabilitiesRecognisedAsOfAcquisitionDate
1628 Fair value of net identifiable assets acquired Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1629 Gross contractual amounts receivable for acquired receivables Concept (Monetary) As Of Debit ifrs-full:GrossContractualAmountsReceivableForAcquiredReceivables
1630 Proceeds from collection of acquired receivables Concept (Monetary) For Period Credit itp:ProceedsFromCollectionOfAcquiredTradeReceivables
1631 2417405 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Fair Value of Goodwill (Details) Network

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*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillFairValueOfGoodwillDetails
1632 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1633 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1634 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1635 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1636 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1637 Maiweave Acquisition Member itp:MaiweaveLLCMember
1638 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1639 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1640 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1641 GPCP, Inc. Member itp:GPCPInc.Member
1642 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
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1644 Effect of change in IPG's ownership interest in Capstone Concept (Monetary) As Of Debit itp:Increasethroughchangesinownershipinterestsinsubsidiariesthatdonotresultinlossofcontrolequity
1645 Cash consideration transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1646 Plus: Remaining non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
1647 Less: fair value of net identifiable assets acquired Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1648 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1649 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1650 Proportion of voting rights held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfVotingRightsHeldByNoncontrollingInterests
1651 2417406 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Impact on Company's Consolidated Earnings (Details) Network

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*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillImpactOnCompanysConsolidatedEarningsDetails
1652 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1653 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1654 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1655 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1656 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1657 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1658 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1659 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1660 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1661 2417407 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Pro Forma Earnings (Details) Network

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*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillProFormaEarningsDetails
1662 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1663 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1664 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1665 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1666 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1667 Maiweave Acquisition Member itp:MaiweaveLLCMember
1668 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1669 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1670 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
1671 Net earnings (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
1672 2417408 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Cash Consideration Paid (Details) Network

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 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillCashConsiderationPaidDetails
1673 Disclosure of detailed information about business combination [table] Table

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*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1674 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1675 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1676 Polyair Acquisition Member itp:PolyairInterPackInc.Member
1677 Maiweave Acquisition Member itp:MaiweaveLLCMember
1678 Cantech Acquisition Member itp:CanadianTechnicalTapeLtd.Member
1679 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1680 Consideration paid in cash Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1681 Less: cash balances acquired Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
1682 Net cash consideration paid Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1683 2417409 - Disclosure - BUSINESS ACQUISITIONS AND GOODWILL - Changes in Goodwill (Details) Network

*

*

 http://www.itape.com/role/BusinessAcquisitionsAndGoodwillChangesInGoodwillDetails
1684 Implied Table Table

*

*

 implied:Table
1685 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
1686 Beginning balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
1687 Acquired through business combinations Concept (Monetary) For Period Debit ifrs-full:AdditionalRecognitionGoodwill
1688 Net foreign exchange differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
1689 Ending balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
1690 2418402 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Narrative (Details) Network

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*

 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansNarrativeDetails
1691 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1692 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1693 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1694 Plan assets Member ifrs-full:PlanAssetsMember
1695 Plan liabilities Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1696 Types of insurance contracts [axis] Axis ifrs-full:TypesOfInsuranceContractsAxis
1697 Types of insurance contracts [member] Member ifrs-full:InsuranceContractsMember
1698 Corporate-owned Life Insurance Held in Rabbi Trust Member itp:CorporateownedLifeInsuranceHeldinTrustMember
1699 Range [axis] Axis ifrs-full:RangeAxis
1700 Ranges [member] Member ifrs-full:RangesMember
1701 Top of range Member ifrs-full:TopOfRangeMember
1702 Bottom of range Member ifrs-full:BottomOfRangeMember
1703 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1704 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1705 Pension Plans Member itp:PensionPlanMember
1706 SERPs Member itp:SupplementalExecutiveRetirementPlanMember
1707 US plans Member ifrs-full:ForeignDefinedBenefitPlansMember
1708 Canadian plans Member ifrs-full:DomesticDefinedBenefitPlansMember
1709 Other Plans Member itp:OtherPostretirementBenefitsPlanMember
1710 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1711 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1712 United States Member country:US
1713 Income Tax Authority [Axis] Axis itp:IncomeTaxAuthority1Axis
1714 Income Tax Authority [Member] Member itp:IncomeTaxAuthority1Member
1715 Foreign Tax Authority Member itp:ForeignTaxAuthority1Member
1716 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1717 Company percent contribution of each participant's eligible salary Concept (Percent) For Period itp:DefinedContributionPlanEmployerMatchingContributionPercentOfMatch1
1718 Expense related to the defined contribution plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
1719 Number of defined benefit pension plans Concept (Integer) For Period itp:NumberOfDefinedBenefitPlans
1720 Annual pension benefit Concept (Monetary) For Period Debit itp:AnnualIndividualPensionBenefit
1721 Deferred compensation plan assets Concept (Monetary) As Of Debit itp:KeyManagementPersonnelCompensationOtherLongTermEmployeeBenefitsAssets
1722 Deferred compensation plan liabilities Concept (Monetary) As Of Credit itp:KeyManagementPersonnelCompensationOtherLongTermEmployeeBenefitsLiabilities
1723 Employer contributions Concept (Monetary) For Period Credit ifrs-full:EmployerContributions
1724 Net tax benefit Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1725 Amount of equity and fixed income instruments held in mutual funds or exchange traded funds Concept (Percent) As Of itp:DebtAndEquityInstrumentsAmountContributedToFairValueOfPlanAssetsPercentageHeldInMutualFundsOrExchangeTradedFunds
1726 Expected employer contributions Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
1727 Weighted average duration of defined benefit obligation Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
1728 2418403 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Reconciliation of Defined Benefit Obligations and Plan Assets (Details) Network

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*

 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansReconciliationOfDefinedBenefitObligationsAndPlanAssetsDetails
1729 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1730 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1731 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1732 Pension Plans Member itp:PensionPlanMember
1733 Other Plans Member itp:OtherPostretirementBenefitsPlanMember
1734 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1735 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1736 Defined benefit obligations Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1737 Fair value of plan assets Member ifrs-full:PlanAssetsMember
1738 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1739 Reconciliation of changes in net defined benefit liability (assets) [Abstract] Abstract itp:ReconciliationOfChangesInNetDefinedBenefitLiabilityAssetAbstract
1740 Net defined benefit liability (asset) Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1741 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1742 Interest cost (income) Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1743 Benefits paid Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
1744 Actuarial gains from demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1745 Actuarial losses (gains) from financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1746 Experience losses (gains) Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
1747 Foreign exchange rate adjustment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
1748 Return on plan assets (excluding amounts included in net interest expense) Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1749 Contributions by the employer Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1750 Administration expenses Concept (Monetary) For Period Credit itp:AdministrationExpensesNetDefinedBenefitLiabilityAsset
1751 Net defined benefit liability (asset) Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1752 Funded status – deficit Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1753 2418404 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Fair Value of Plan Assets (Details) Network

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*

 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansFairValueOfPlanAssetsDetails
1754 Disclosure of fair value of plan assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
1755 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1756 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1757 US Member ifrs-full:ForeignDefinedBenefitPlansMember
1758 Canada Member ifrs-full:DomesticDefinedBenefitPlansMember
1759 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
1760 Defined benefit obligations Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1761 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1762 Deficit in plans Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1763 2418405 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Funded Status of Plans (Details) Network

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*

 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansFundedStatusOfPlansDetails
1764 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1765 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1766 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1767 Defined benefit obligations Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1768 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1769 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1770 Pension Plans Member itp:PensionPlanMember
1771 Retirement plan funding status [axis] Axis itp:RetirementPlanFundingStatus1Axis
1772 Retirement plan funding status [Member] Member itp:RetirementPlanFundingStatus1Member
1773 Wholly unfunded Member itp:UnfundedPlan1Member
1774 Wholly funded or partially funded Member itp:FundedPlan1Member
1775 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1776 Defined benefit obligations Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1777 2418406 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Reconciliation of Pension and Other Post-retirement Obligation (Details) Network

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 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansReconciliationOfPensionAndOtherPostRetirementObligationDetails
1778 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1779 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1780 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1781 Pension Plans Member itp:PensionPlanMember
1782 Other Plans Member itp:OtherPostretirementBenefitsPlanMember
1783 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1784 Present value of the defined benefit obligation Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1785 Fair value of the plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1786 Deficit in plans Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1787 Total pension and other post-retirement benefits recognized in balance sheets Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
1788 2418407 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Composition of Plan Assets (Details) Network

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 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansCompositionOfPlanAssetsDetails
1789 Implied Table Table

*

*

 implied:Table
1790 Disclosure of employee benefits [Abstract] Abstract itp:DisclosureofemployeebenefitsAbstract
1791 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
1792 Equity instruments Concept (Monetary) As Of Debit ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets
1793 Fixed income instruments Concept (Monetary) As Of Debit ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets
1794 Real estate investment trusts Concept (Monetary) As Of Debit itp:RealEstateInvestmentsTrustAmountContributedToFairValueOfPlanAssets
1795 Plan assets, at fair value Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1796 2418408 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Defined Benefit Expense (Details) Network

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 http://www.itape.com/role/PensionPostRetirementAndOtherLongTermEmployeeBenefitPlansDefinedBenefitExpenseDetails
1797 Disclosure of defined benefit plans [table] Table

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 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1798 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1799 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1800 Pension Plans Member itp:PensionPlanMember
1801 Other Plans Member itp:OtherPostretirementBenefitsPlanMember
1802 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1803 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1804 Administration expenses Concept (Monetary) For Period Credit itp:AdministrationExpensesNetDefinedBenefitLiabilityAsset
1805 Net interest expense Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1806 Net costs recognized in the statement of consolidated earnings Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1807 2418409 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Remeasurement Recognized in OCI (Details) Network

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1808 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1809 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1810 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1811 Pension Plans Member itp:PensionPlanMember
1812 Other Plans Member itp:OtherPostretirementBenefitsPlanMember
1813 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1814 Actuarial gains (losses) from demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1815 Actuarial gains (losses) from financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1816 Experience (losses) gains Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
1817 Return on plan assets (excluding amounts included in net interest expense) Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1818 Total amounts recognized in OCI Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
1819 2418410 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Significant Weighted Average Assumptions (Details) Network

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1820 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

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1821 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1822 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1823 US plans Member ifrs-full:ForeignDefinedBenefitPlansMember
1824 Canadian plans Member ifrs-full:DomesticDefinedBenefitPlansMember
1825 Retirement plan type [axis] Axis itp:RetirementPlanType1Axis
1826 Retirement plan type [member] Member itp:RetirementPlanTypeMember
1827 Pension Plans Member itp:PensionPlanMember
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1832 Other plans (End of the Year) Member itp:ActuarialAssumptionofDiscountRateServiceCostsMember
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1834 Current pensioner - Female Member itp:ActuarialAssumptionOfCurrentPensionerFemaleMember
1835 Current member aged 45 - Male Member itp:ActuarialAssumptionOfCurrentMemberAge45MaleMember
1836 Current member aged 45 - Female Member itp:ActuarialAssumptionOfCurrentMemberAge45FemaleMember
1837 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
1838 Discount rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
1839 Life expectancy at age 65 (in years) Concept (xbrli:durationItemType) For Period itp:ActuarialAssumptionOfMortalityRatesLifeExpectancyAtAge65Period
1840 2418411 - Disclosure - PENSION, POST-RETIREMENT AND OTHER LONG-TERM EMPLOYEE BENEFIT PLANS - Sensitivity Analysis (Details) Network

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1841 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

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1842 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
1843 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
1844 Discount rate Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1845 Mortality rate Member ifrs-full:ActuarialAssumptionOfMortalityRatesMember
1846 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
1847 Percentage of reasonably possible increase in actuarial assumptions Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
1848 Percentage of reasonably possible decrease in actuarial assumptions Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
1849 Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1850 Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
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1852 Period of reasonably possible decrease in life expectancy Concept (xbrli:durationItemType) For Period itp:PeriodOfReasonablyPossibleDecreaseInActuarialAssumption
1853 2419402 - Disclosure - SUPPLEMENTAL DISCLOSURES BY GEOGRAPHIC LOCATION AND PRODUCT LINE - Geographic Information (Details) Network

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1854 Disclosure of geographical areas [table] Table

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1855 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1856 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1857 Canada Member ifrs-full:CountryOfDomicileMember
1858 India Member country:IN
1859 Portugal Member country:PT
1860 Germany Member country:DE
1861 United States Member country:US
1862 Other Member itp:OtherForeignCountriesMember
1863 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
1864 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1865 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1866 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1867 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1868 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
1869 2419403 - Disclosure - SUPPLEMENTAL DISCLOSURES BY GEOGRAPHIC LOCATION AND PRODUCT LINE - Revenue by Product Categories (Details) Network

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1870 Disclosure of products and services [table] Table

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1871 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1872 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1873 Tape Member itp:TapeMember
1874 Film Member itp:FilmMember
1875 Engineered coated products Member itp:EngineeredCoatedProductsMember
1876 Protective packaging Member itp:ProtectivePackagingMember
1877 Other Member itp:OtherProductsMember
1878 Disclosure of products and services [line items] LineItems ifrs-full:DisclosureOfProductsAndServicesLineItems
1879 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1880 2420402 - Disclosure - RELATED PARTY TRANSACTIONS (Details) Network

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1881 Disclosure of transactions between related parties [table] Table

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1882 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1883 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1884 CFO Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
1885 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1886 Number of members of senior management Concept (Integer) As Of itp:KeyPersonnelNumberofSeniorManagementMembers
1887 Short-term benefits including employee salaries and bonuses and director retainer and committee fees Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1888 Post-employment and other long-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1889 Share-based compensation expense Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1890 Total remuneration Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1891 2421401 - Disclosure - COMMITMENTS - Operating Leases (Details) Network

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1892 Disclosure of finance lease and operating lease by lessee [table] Table

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*

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1893 Maturity [axis] Axis ifrs-full:MaturityAxis
1894 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1895 2019 Member ifrs-full:NotLaterThanOneYearMember
1896 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1897 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1898 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1899 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1900 Thereafter Member ifrs-full:LaterThanFiveYearsMember
1901 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1902 Operating lease expense Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
1903 Lease commitments Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1904 2421402 - Disclosure - COMMITMENTS - Purchase Commitments (Details) Network

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1905 Disclosure of Purchase Commitments [Table] Table

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1906 Purchase Commitment [Axis] Axis itp:PurchaseCommitment1Axis
1907 Purchase Commitment [Member] Member itp:PurchaseCommitment1Member
1908 Electricity Service Contract Member itp:ElectricityServiceContractMember
1909 Utilities Contract Member itp:UtilitiesContractMember
1910 Commitments to Suppliers Member itp:PurchaseCommitmentToSuppliersMember
1911 Types of contracts [axis] Axis ifrs-full:TypesOfContractsAxis
1912 Types of contracts [member] Member ifrs-full:TypesOfContractsMember
1913 Fixed-price contract Member ifrs-full:FixedpriceContractsMember
1914 Maturity [axis] Axis ifrs-full:MaturityAxis
1915 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1916 2019 Member ifrs-full:NotLaterThanOneYearMember
1917 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1918 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1919 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1920 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1921 Thereafter Member ifrs-full:LaterThanFiveYearsMember
1922 Range [axis] Axis ifrs-full:RangeAxis
1923 Ranges [member] Member ifrs-full:RangesMember
1924 Bottom of range Member ifrs-full:BottomOfRangeMember
1925 Top of range Member ifrs-full:TopOfRangeMember
1926 Disclosure of Purchase Commitments [Line Items] LineItems itp:DisclosureofPurchaseCommitmentsLineItems
1927 Term of contractual commitment Concept (xbrli:durationItemType) For Period itp:ContractualCommitmentsPeriod
1928 Number of manufacturing facilities Concept (Integer) As Of itp:NumberOfManufacturingFacilities
1929 Contractual commitment, unrecovered power supply liability Concept (Monetary) As Of Credit itp:ContractualCommitmentsUnrecoveredPowerSupplyLiability
1930 Contractual commitment, installation costs Concept (Monetary) For Period Debit itp:ContractualCommitmentsInstallationCosts
1931 Minimum usage payment under contractual commitments Concept (Monetary) As Of Credit itp:MinimumUsagePaymentUnderContractualCommitments
1932 Maximum early cancellation penalty under contractual commitment Concept (Monetary) As Of Credit itp:EarlyCancellationPenaltyFeeUnderContractualCommitmentsMaximum
1933 Purchase commitment amount Concept (Monetary) As Of Credit itp:PurchaseCommitmentAmount1
1934 Term of consignment agreement to purchase from suppliers Concept (xbrli:durationItemType) For Period itp:ContractualCommitmentsPeriodForConsignmentAgreements
1935 Term for excess storage to purchase from suppliers Concept (xbrli:durationItemType) For Period itp:ContractualCommitmentsExcessStoragePeriodForConsignmentAgreements
1936 Raw materials on hand owned by suppliers Concept (Monetary) As Of Debit itp:RawMaterialsUnderConsignment
1937 Term for shipment delays for storage fees Concept (xbrli:durationItemType) For Period itp:ContractualCommitmentsShipmentDelayPeriodForStorageFees
1938 2422402 - Disclosure - FINANCIAL INSTRUMENTS - Classification of Financial Instruments (Details) Network

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1939 Disclosure of financial assets and liabilities [Table] Table

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1940 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1941 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1942 Amortized cost Member ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember
1943 Fair value through earnings Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
1944 Derivatives used for hedging (fair value through OCI) Member ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember
1945 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1946 Financial assets, class Member ifrs-full:FinancialAssetsMember
1947 Cash Member itp:Cash1Member
1948 Trade receivables Member ifrs-full:TradeReceivablesMember
1949 Supplier rebates and other receivables Member itp:SupplierRebatesAndOtherReceivablesMember
1950 Interest rate swap agreements Member ifrs-full:InterestRateSwapContractMember
1951 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
1952 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
1953 Interest rate swap agreements Member ifrs-full:InterestRateSwapContractMember
1954 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1955 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1956 Cash flow hedges Member ifrs-full:CashFlowHedgesMember
1957 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1958 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1959 Amortized cost Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
1960 Fair value through earnings Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1961 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1962 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1963 Accounts payable and accrued liabilities Member itp:AccountsPayableAndAccruedLiabilities1Member
1964 Borrowings Member itp:Borrowings1Member
1965 Non-controlling interest put options Member itp:NoncontrollingInterestPutOptionMember
1966 Amounts due to former shareholders of Polyair Member itp:ContingentLiabilitiesRecognisedInBusinessCombinationMember
1967 Call option redemption liability Member itp:CallOptionRedemptionLiabilityMember
1968 Disclosure of financial assets and liabilities [Line Items] LineItems itp:DisclosureoffinancialassetsandliabilitiesLineItems
1969 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1970 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1971 2422403 - Disclosure - FINANCIAL INSTRUMENTS - Interest Expense Relating to Financial Assets and Liabilities (Details) Network

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1972 Implied Table Table

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1973 Disclosure of detailed information about financial instruments [abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
1974 Interest expense calculated using the effective interest rate method Borrowings Concept (Monetary) For Period Debit ifrs-full:InterestExpenseForFinancialLiabilitiesNotAtFairValueThroughProfitOrLoss
1975 2422404 - Disclosure - FINANCIAL INSTRUMENTS - Narrative (Details) Network

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1976 Disclosure of detailed information about financial instruments [table] Table

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*

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1977 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1978 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1979 Capstone Member itp:CapstoneInvestmentMember
1980 Powerband Member itp:PowerbandIndustriesPrivateLimitedMember
1981 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1982 Equity [member] Member ifrs-full:EquityMember
1983 Non-controlling interest Member ifrs-full:NoncontrollingInterestsMember
1984 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1985 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1986 Cash flow hedges Member ifrs-full:CashFlowHedgesMember
1987 Hedges of net investment Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
1988 Risk Benchmark [Axis] Axis itp:RiskBenchmarkAxis
1989 Risk Benchmark [Domain] Member itp:RiskBenchmarkDomain
1990 Trade receivables Member ifrs-full:TradeReceivablesMember
1991 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1992 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1993 Non-controlling interest put options Member ifrs-full:Level3OfFairValueHierarchyMember
1994 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1995 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1996 Powerband Member itp:PowerbandIndustriesPrivateLimitedMember
1997 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
1998 Option Indexed to Issuer's Equity, Type [Axis] Axis itp:OptionIndexedtoIssuersEquityTypeAxis
1999 Option Indexed to Issuer's Equity, Type [Member] Member itp:OptionIndexedtoIssuersEquityTypeMember
2000 Put Option Member itp:PutOption1Member
2001 Vesting [Axis] Axis itp:Vesting1Axis
2002 Vesting [Member] Member itp:Vesting1Member
2003 September 16, 2019 Member itp:VestingPeriodOneMember
2004 September 16, 2021 Member itp:VestingPeriodTwoMember
2005 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2006 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2007 Financial liabilities at amortised cost, category Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
2008 Financial liabilities at fair value through profit or loss, category [member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
2009 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2010 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2011 Call option redemption liability Member itp:CallOptionRedemptionLiabilityMember
2012 Non-controlling interest put options Member itp:NoncontrollingInterestPutOptionMember
2013 Range [axis] Axis ifrs-full:RangeAxis
2014 Ranges [member] Member ifrs-full:RangesMember
2015 Bottom of range Member ifrs-full:BottomOfRangeMember
2016 Top of range Member ifrs-full:TopOfRangeMember
2017 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2018 Risks [member] Member ifrs-full:TypesOfRisksMember
2019 Exchange risk Member ifrs-full:CurrencyRiskMember
2020 Interest rate risk Member ifrs-full:InterestRateRiskMember
2021 Credit risk Member ifrs-full:CreditRiskMember
2022 Price risk Member ifrs-full:OtherPriceRiskMember
2023 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2024 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2025 Interest rate swap agreements Member ifrs-full:InterestRateSwapContractMember
2026 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2027 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2028 Senior Unsecured Notes Member itp:SeniorUnsecuredNotesMember
2029 Revolving Credit Facility Member itp:PowerbandRevolvingLineofCreditMember
2030 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2031 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
2032 Fair value of debt Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
2033 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
2034 Valuation adjustment made to non-controlling interest put options Concept (Monetary) For Period Debit itp:FairValueMeasurementLiabilitiesValuationAdjustments
2035 Extinguishment of non-controlling interest put options Concept (Monetary) For Period Debit itp:FairValueMeasurementLiabilitiesExtinguishmentOfLiability
2036 Proportion of voting rights held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfVotingRightsHeldByNoncontrollingInterests
2037 Acquisition of non-controlling interest in Powerband through settlement of call option Concept (Monetary) For Period Credit itp:PaymentsForSettlementOfCallOptionRedemptionLiability
2038 Derecognition of call option redemption liability Concept (Monetary) For Period Credit itp:DerecognitionOfCallOptionRedemptionLiability
2039 Gain on foreign exchange Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
2040 Liabilities related to non-controlling interest put options Concept (Monetary) As Of Credit itp:NoncontrollingInterestPutOptionsPayable
2041 Lock-in period Concept (xbrli:durationItemType) For Period itp:PeriodtoRetainOwnershipInterestsInSubsidiariesFollowingAcquisitionDate
2042 Increase (decrease) to equity as result of share-purchase activity of non-controlling interest Concept (Monetary) For Period Credit itp:IncreaseDecreaseThroughForeignExchangeFinancialLiabilities
2043 Non-derivative financial liabilities, undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
2044 Non-current derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
2045 Non-controlling interest put options, undiscounted cash flows Concept (Monetary) For Period Debit itp:FutureAnnualCashFlowsSignificantUnobservableInputsLiabilities
2046 Discount rate applied to cash flow projections Concept (Percent) For Period ifrs-full:InterestRateSignificantUnobservableInputsLiabilities
2047 Sensitivity analysis, exchange risk, reasonably possible change in rate, percent Concept (Percent) For Period itp:SensitivityAnalysisReasonablyPossibleChangeInRiskVariableIncreasePercent
2048 Derivatives settled Concept (Monetary) As Of Credit itp:DerivativesSettled
2049 Interest rate of derivative settled Concept (Percent) As Of itp:DerivativeSettledFixedInterestRate1
2050 Hedge ratio Concept (Pure) As Of itp:HedgeRatioforHedgingRelationship
2051 Reasonably possible change in risk variable, impact on finance costs Concept (Monetary) For Period Debit itp:SensitivityAnalysisForTypesOfinterestRateRiskReasonablyPossibleChangeInRiskVariableIncreaseDecreaseInFinanceCosts
2052 Concentration of risk, number of customers Concept (Integer) As Of itp:ConcentrationofRiskNumberofCustomers
2053 Concentration of risk, percentage Concept (Percent) As Of itp:ConcentrationofRiskRiskBenchmarkPercentage
2054 Debt issued Concept (Monetary) As Of ifrs-full:NotionalAmount
2055 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
2056 Loan availability Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
2057 Loan availability, committed funding Concept (Monetary) As Of Credit itp:Undrawnborrowingfacilitiescommitted
2058 Loan availability, uncommitted funding Concept (Monetary) As Of Credit itp:Undrawnborrowingfacilitiesuncommitted
2059 Total cash and loan availability Concept (Monetary) As Of Credit itp:UndrawnBorrowingFacilitiesandAvailableCashonHand
2060 Sensitivity analysis, reasonably possible increase in rate, percentage Concept (Percent) For Period itp:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableIncreasePercent
2061 Sensitivity analysis, price risk, reasonably possible change in rate, increase in cost of sales Concept (Monetary) For Period Debit itp:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableIncreaseInCostofSales
2062 Sensitivity analysis, reasonably possible decrease in rate, percentage Concept (Percent) For Period itp:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableDecreasePercent
2063 Sensitivity analysis, price risk, reasonably possible change in rate, decrease in cost of sales Concept (Monetary) For Period Credit itp:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableDecreaseInCostofSales
2064 2422405 - Disclosure - FINANCIAL INSTRUMENTS - Reconciliation of Carrying Amount of Financial Instruments Classified as Level 3 (Details) Network

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2065 Disclosure of financial liabilities [table] Table

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2066 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2067 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2068 Powerband Industries Private Limited Member itp:PowerbandIndustriesPrivateLimitedMember
2069 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
2070 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
2071 Level 3 Member ifrs-full:Level3OfFairValueHierarchyMember
2072 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2073 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2074 Non-controlling interest put options Member itp:NoncontrollingInterestPutOptionMember
2075 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
2076 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2077 Powerband Industries Private Limited Member itp:PowerbandIndustriesPrivateLimitedMember
2078 Airtrax Acquisition Member itp:AirtraxPolymersPrivateLimiteddbaAirtraxMember
2079 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2080 Reconciliation of the carrying amount of financial instruments [abstract] Abstract ifrs-full:ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract
2081 Balance at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:Liabilities
2082 Non-controlling interest put options resulting from the Airtrax Acquisition Concept (Monetary) For Period Credit ifrs-full:PurchasesFairValueMeasurementLiabilities
2083 Valuation adjustment made to Powerband non-controlling interest put options Concept (Monetary) For Period Debit itp:FairValueMeasurementLiabilitiesValuationAdjustments
2084 Extinguishment of Powerband non-controlling interest put options Concept (Monetary) For Period Debit itp:FairValueMeasurementLiabilitiesExtinguishmentOfLiability
2085 Net foreign exchange differences Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities
2086 Balance at end of the year Concept (Monetary) As Of Credit ifrs-full:Liabilities
2087 2422406 - Disclosure - FINANCIAL INSTRUMENTS - Sensitivity Analysis of Foreign Currencies Against U.S. Dollar and Impact on Finance Costs (Details) Network

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2088 Disclosure of financial assets and liabilities [Table] Table

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*

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2089 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2090 Risks [member] Member ifrs-full:TypesOfRisksMember
2091 Currency risk Member ifrs-full:CurrencyRiskMember
2092 Currency [Axis] Axis itp:Currency1Axis
2093 All Currencies [Domain] Member currency:AllCurrenciesDomain
2094 Canadian dollar Member currency:CAD
2095 Euro Member currency:EUR
2096 Indian Rupee Member currency:INR
2097 Disclosure of financial assets and liabilities [Line Items] LineItems itp:DisclosureoffinancialassetsandliabilitiesLineItems
2098 Increase (decrease) to finance income (cost), net of foreign exchange gain (loss) Concept (Monetary) For Period Credit itp:SensitivityAnalysisForTypesofMarketRiskReasonablyPossibleChangeinRiskVariableImpactOnPretaxEarnings
2099 2422407 - Disclosure - FINANCIAL INSTRUMENTS - Hedging Instruments (Details) Network

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2100 Disclosure of detailed information about hedging instruments [table] Table

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2101 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
2102 Equity [member] Member ifrs-full:EquityMember
2103 CTA Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
2104 Accumulated other comprehensive loss, Reserve for cash flow hedges Member ifrs-full:ReserveOfCashFlowHedgesMember
2105 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
2106 Hedges [member] Member ifrs-full:TypesOfHedgesMember
2107 Hedges of net investment Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
2108 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2109 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2110 Senior Unsecured Notes denominated in USD Member itp:SeniorUnsecuredNotesMember
2111 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2112 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2113 IPG (US) Inc. Member itp:IPGUSInc.Member
2114 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2115 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2116 Interest rate swap agreements Member ifrs-full:InterestRateSwapContractMember
2117 Disclosure of detailed information about hedging instruments [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
2118 Notional Amount Concept (Monetary) As Of Credit ifrs-full:HedgingInstrumentLiabilities
2119 Carrying Amount Concept (Monetary) As Of Credit ifrs-full:Borrowings
2120 Change in value used for calculating hedge ineffectiveness Concept (Monetary) For Period Credit ifrs-full:GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness
2121 Change in value of hedging instrument recognized in OCI Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax
2122 Hedge ineffectiveness recognized in earnings Concept (Monetary) For Period Credit ifrs-full:GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss
2123 Foreign exchange impact recognized in CTA Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax
2124 Carrying amount included in other assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2125 Change in value of hedging instrument recognized in OCI Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
2126 Change in deferred tax recognized in OCI Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
2127 Amounts reclassified from cash flow hedging reserve to earnings Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax
2128 Balance in cash flow hedge reserve for continuing hedges Concept (Monetary) As Of Credit ifrs-full:ReserveOfCashFlowHedgesContinuingHedges
2129 Balance remaining in cash flow hedge reserve from hedging relationship for which hedge accounting no longer applies Concept (Monetary) As Of Credit ifrs-full:ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied
2130 2422408 - Disclosure - FINANCIAL INSTRUMENTS - Amounts Related to Items Designated as Hedged Items (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsAmountsRelatedToItemsDesignatedAsHedgedItemsDetails
2131 Disclosure of detailed information about hedging instruments [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsTable
2132 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2133 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2134 Net investment in IPG (US) Holdings, Inc. Member itp:IPGUSInc.Member
2135 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
2136 Hedges [member] Member ifrs-full:TypesOfHedgesMember
2137 Hedges of net investment Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
2138 Disclosure of detailed information about hedging instruments [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
2139 Change in value used for calculating hedge ineffectiveness Concept (Monetary) For Period Credit ifrs-full:ChangesInEquity
2140 Foreign currency translation reserve Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax
2141 2422409 - Disclosure - FINANCIAL INSTRUMENTS - Interest Rate Swap Agreements (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsInterestRateSwapAgreementsDetails
2142 Disclosure of detailed information about hedging instruments [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsTable
2143 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2144 Risks [member] Member ifrs-full:TypesOfRisksMember
2145 Interest rate risk Member ifrs-full:InterestRateRiskMember
2146 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
2147 Hedges [member] Member ifrs-full:TypesOfHedgesMember
2148 Qualifying cash flow hedges Member ifrs-full:CashFlowHedgesMember
2149 Non-qualifying cash flow hedge Member itp:NotDesignatedasHedgingInstrument1Member
2150 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2151 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2152 Interest rate swap agreements Member ifrs-full:InterestRateSwapContractMember
2153 Disclosure of detailed information about hedging instruments [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
2154 Notional amount Concept (Monetary) As Of invest:DerivativeNotionalAmount
2155 Fixed interest rate paid Concept (Percent) As Of itp:DerivativeFixedInterestRate1
2156 Decrease of notional amount Concept (Monetary) For Period Debit itp:DerivativeNotionalAmountAnnualDecrease
2157 2422410 - Disclosure - FINANCIAL INSTRUMENTS - Analysis of Age of Trade Receivables (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsAnalysisOfAgeOfTradeReceivablesDetails
2158 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
2159 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
2160 Carrying amount [member] Member ifrs-full:CarryingAmountMember
2161 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
2162 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
2163 Past due status [member] Member ifrs-full:PastDueStatusMember
2164 Current Member ifrs-full:CurrentMember
2165 1 – 30 days past due Member ifrs-full:NotLaterThanOneMonthMember
2166 31 – 60 days past due Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
2167 61 – 90 days past due Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
2168 Over 90 days past due Member ifrs-full:LaterThanThreeMonthsMember
2169 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
2170 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
2171 Current Member ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember
2172 Past due accounts not impaired Member ifrs-full:FinancialAssetsPastDueButNotImpairedMember
2173 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2174 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
2175 Allowance for expected credit loss Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2176 2422411 - Disclosure - FINANCIAL INSTRUMENTS - Changes in Allowance for Doubtful Accounts (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsChangesInAllowanceForDoubtfulAccountsDetails
2177 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table] Table

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 ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable
2178 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2179 Financial assets, class Member ifrs-full:FinancialAssetsMember
2180 Trade receivables Member ifrs-full:TradeReceivablesMember
2181 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems
2182 Balance, beginning of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2183 Additions Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
2184 Recoveries Concept (Monetary) For Period ifrs-full:ReversalAllowanceAccountForCreditLossesOfFinancialAssets
2185 Write-offs Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
2186 Foreign exchange Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
2187 Balance, end of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2188 2422412 - Disclosure - FINANCIAL INSTRUMENTS - Maturity Analysis for Non-derivative Financial Liabilities (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsMaturityAnalysisForNonDerivativeFinancialLiabilitiesDetails
2189 Disclosure of maturity analysis for derivative financial liabilities [table] Table

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 ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTable
2190 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2191 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2192 Non-controlling interest put options Member itp:NoncontrollingInterestPutOptionMember
2193 Other borrowings Member itp:OtherLongtermBorrowingsMember
2194 Interests on other borrowings Member itp:InterestsonOtherLongtermBorrowingsMember
2195 Finance lease liabilities Member itp:FinanceLeaseLiabilityMember
2196 Accounts payable and accrued liabilities Member itp:AccountsPayableAndAccruedLiabilities1Member
2197 Call option redemption liability Member itp:CallOptionRedemptionLiabilityMember
2198 Maturity [axis] Axis ifrs-full:MaturityAxis
2199 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2200 Current maturity Member ifrs-full:NotLaterThanOneYearMember
2201 1-2 years Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2202 2-3 years Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2203 3-4 years Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2204 4-5 years Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2205 Thereafter Member ifrs-full:LaterThanFiveYearsMember
2206 Disclosure of maturity analysis for derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesLineItems
2207 Non-derivative financial liabilities, undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
2208 2422413 - Disclosure - FINANCIAL INSTRUMENTS - Capital Structure (Details) Network

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 http://www.itape.com/role/FinancialInstrumentsCapitalStructureDetails
2209 Implied Table Table

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 implied:Table
2210 Disclosure of detailed information about financial instruments [abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2211 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
2212 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
2213 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
2214 2423401 - Disclosure - POST REPORTING EVENTS (Details) Network

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 http://www.itape.com/role/PostReportingEventsDetails
2215 Disclosure of non-adjusting events after reporting period [table] Table

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 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
2216 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
2217 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
2218 Major ordinary share transactions Member ifrs-full:MajorOrdinaryShareTransactionsMember
2219 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
2220 Cash dividends declared (in US dollars per share) Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
2221 Estimated amount of dividend payment Concept (Monetary) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
2222 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued

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