Atento S.A. (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 000100 - Document - Document and Entity Information Network

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 http://www.Atento.com/role/DocumentDocumentAndEntityInformation
2 Implied Table Table

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 implied:Table
3 Document Entity Information [Abstract] Abstract atto:DocumentEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
6 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
7 Amendment Description Concept (Text/String) For Period dei:AmendmentDescription
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
10 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
13 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
14 Trading symbol Concept (Text/String) For Period dei:TradingSymbol
15 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
16 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
17 Entity Well Known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
18 Entity Common Stock Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
19 Entity Public Float Concept (Monetary) As Of Credit dei:EntityPublicFloat
20 000200 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALPOSITION
21 Implied Table Table

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 implied:Table
22 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
23 Assets [abstract] Abstract ifrs-full:AssetsAbstract
24 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
25 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
26 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
27 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
28 Non-current financial assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssets
29 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
30 Other taxes receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax
31 Other non-current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
32 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
33 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
34 Trade and other current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
35 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
36 Trade and other receivables Concept (Monetary) As Of Debit atto:CurrentTradeAndOtherReceivables
37 Current income tax receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
38 Other taxes receivable Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
39 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
40 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
41 Total Assets Concept (Monetary) As Of Debit ifrs-full:Assets
42 Equity and liabilities [abstract] Abstract ifrs-full:EquityAndLiabilitiesAbstract
43 Total Equity Concept (Monetary) As Of Credit ifrs-full:Equity
44 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
45 Owners of the parent company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
46 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
47 Reserve for acquisition of non-controlling interest Concept (Monetary) As Of Credit atto:ReserveForAcquisitionOfNonControllingInterest
48 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
49 Treasury Shares Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
50 Retained losses Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
51 Translation differences Concept (Monetary) As Of Credit ifrs-full:ReserveOfExchangeDifferencesOnTranslation
52 Cash flow/net investment hedge Concept (Monetary) As Of Credit ifrs-full:ReserveOfCashFlowHedges
53 Stock-based compensation Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
54 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
55 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
56 Debt with third parties Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
57 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
58 Provisions and contingencies Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
59 Non-trade payables Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
60 Option for the acquisition of non-controlling interest Concept (Monetary) As Of Credit atto:OptionForTheAcquisitionOfNonControllingInterest
61 Other taxes payable Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax
62 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
63 Debt with third parties Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
64 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
65 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
66 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
67 Income tax payables Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
68 Other taxes payables Concept (Monetary) As Of Credit ifrs-full:CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax
69 Other non-trade payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
70 Current provisions Concept (Monetary) As Of Credit ifrs-full:CurrentProvisions
71 Total Equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
72 000300 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS
73 Implied Table Table

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 implied:Table
74 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
75 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
76 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
77 Other gains Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
78 Operating expenses: Abstract ifrs-full:ExpenseByNatureAbstract
79 Supplies Concept (Monetary) For Period Debit ifrs-full:ServicesExpense
80 Employee benefits expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
81 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
82 Amortisation Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
83 Changes in trade provisions Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
84 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
85 Impairment charges Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9
86 OPERATING PROFIT Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
87 Finance income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
88 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
89 Change in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
90 Net foreign exchange loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
91 (LOSS)/PROFIT BEFORE TAX Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
92 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
93 (LOSS)/PROFIT FROM CONTINUING OPERATIONS Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
94 LOSS FROM DISCONTINUED OPERATIONS (**) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
95 (LOSS)/PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
96 (LOSS)/PROFIT ATTRIBUTABLE TO: Abstract ifrs-full:ProfitLossAttributableToAbstract
97 OWNERS OF THE PARENT Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
98 NON-CONTROLLING INTEREST Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
99 (LOSS)/PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
100 Net finance expense Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
101 EARNINGS PER SHARE: Abstract ifrs-full:EarningsPerShareAbstract
102 Basic (loss)/earnings per share from continuing operations (in U.S. dollars) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
103 Basic loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromDiscontinuedOperations
104 Diluted (loss)/earnings per share from continuing operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
105 Diluted loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations
106 000301 - Statement - CONSOLIDATED INCOME STATEMENTS - EXCLUDING DISCONTINUED OPERATIONS Network

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 http://www.Atento.com/role/CONSOLIDATEDINCOMESTATEMENTSEXCLUDINGDISCONTINUEDOPERATIONS
107 Disclosure of operating segments [table] Table

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 ifrs-full:DisclosureOfOperatingSegmentsTable
108 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
109 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
110 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
111 Atento Morocco [member] Member atto:AtentoMoroccoMember
112 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
113 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
114 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
115 Other gains Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
116 Operating expenses: Abstract ifrs-full:ExpenseByNatureAbstract
117 Supplies Concept (Monetary) For Period Debit ifrs-full:ServicesExpense
118 Employee benefits expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
119 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
120 Amortisation Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
121 Changes in trade provisions Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
122 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
123 Impairment charges Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9
124 OPERATING PROFIT Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
125 Finance income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
126 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
127 Change in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
128 Net foreign exchange loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
129 (LOSS)/PROFIT BEFORE TAX Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
130 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
131 (LOSS)/PROFIT FROM CONTINUING OPERATIONS Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
132 LOSS FROM DISCONTINUED OPERATIONS (**) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
133 (LOSS)/PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
134 (LOSS)/PROFIT ATTRIBUTABLE TO: Abstract ifrs-full:ProfitLossAttributableToAbstract
135 OWNERS OF THE PARENT Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
136 NON-CONTROLLING INTEREST Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
137 Net finance expense Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
138 EARNINGS PER SHARE: Abstract ifrs-full:EarningsPerShareAbstract
139 Basic (loss)/earnings per share from continuing operations (in U.S. dollars) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
140 Basic loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromDiscontinuedOperations
141 Diluted (loss)/earnings per share from continuing operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
142 Diluted loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations
143 000400 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME
144 Implied Table Table

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 implied:Table
145 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
146 (LOSS)/PROFIT FROM CONTINUING OPERATIONS Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
147 LOSS FROM DISCONTINUED OPERATIONS (**) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
148 (LOSS)/PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
149 Other comprehensive income/(loss) Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
150 Other comprehensive income(loss) to be reclassified to profit and loss in subsequent periods: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
151 Cash flow/net investment hedge (Note 15) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
152 Tax effect on hedge Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
153 Translation differences Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
154 Other comprehensive income/(loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
155 Total comprehensive (loss)/income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
156 Total comprehensive income/(loss) attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
157 Owners of the parent Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
158 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
159 Total comprehensive (loss)/income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
160 000401 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - EXCLUDING DISCONTINUED OPERATIONS Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEEXCLUDINGDISCONTINUEDOPERATIONS
161 Disclosure of operating segments [table] Table

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 ifrs-full:DisclosureOfOperatingSegmentsTable
162 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
163 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
164 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
165 Atento Morocco [member] Member atto:AtentoMoroccoMember
166 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
167 (LOSS)/PROFIT FROM CONTINUING OPERATIONS Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
168 LOSS FROM DISCONTINUED OPERATIONS (**) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
169 (LOSS)/PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
170 Other comprehensive income/(loss) Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
171 Other comprehensive income(loss) to be reclassified to profit and loss in subsequent periods: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
172 Cash flow/net investment hedge (Note 15) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
173 Tax effect on hedge Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
174 Translation differences Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
175 Other comprehensive income/(loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
176 Total comprehensive (loss)/income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
177 Total comprehensive income/(loss) attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
178 Owners of the parent Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
179 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
180 000500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOW Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOW
181 Disclosure of operating segments [table] Table

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 ifrs-full:DisclosureOfOperatingSegmentsTable
182 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
183 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
184 Continuing operations [member] Member ifrs-full:ContinuingOperationsMember
185 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
186 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
187 Cash flows from (used in) operating activities [abstract] Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
188 Accounting profit Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
189 Adjustments to reconcile profit (loss) [abstract] Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
190 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
191 Adjustments For Depreciation And Amortisation Expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
192 Impairment losses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
193 Changes in provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
194 Adjustments for share-based payments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
195 Grants released to income Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDeferredIncome
196 Net losses on disposal of fixed assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
197 Net losses on disposal of financial assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading
198 Finance income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
199 Adjustments For Finance Income Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForFinanceIncome
200 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
201 Adjustments For Finance Costs Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFinanceCosts
202 Net foreign exchange differences Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
203 Adjustments For Unrealised Foreign Exchange Losses Gains Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
204 Adjustments For Fair Value Gains Losses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFairValueGainsLosses
205 Change in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
206 Changes in other gains and own work capitalized Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
207 Adjustments For Reconcile Profit (Loss) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForReconcileProfitLoss
208 Changes in working capital [abstract] Abstract atto:Changesinworkingcapitalabstract
209 Changes in trade and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
210 Changes in trade and other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
211 Other assets/(payables) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
212 Other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherOperatingPayables
213 Increase (decrease) in working capital Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
214 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
215 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
216 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
217 Other payments Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities
218 Total inflows (outflows) of cash, classified as operating activities Concept (Monetary) For Period Debit atto:TotalInflowsOutflowsOfCashClassifiedAsOperatingActivities
219 Cash flows from (used in) operations before changes in working capital Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital
220 Net cash flow from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
221 Cash flows from (used in) investing activities [abstract] Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
222 Payments for acquisition of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
223 Payments for acquisition of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
224 Acquisition of subsidiaries, net of cash acquired Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
225 Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities Concept (Monetary) For Period Credit ifrs-full:OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities
226 Payments for financial instruments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities
227 Proceeds from sale of intangible assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities
228 Proceeds from sale of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
229 Proceeds from sale of PP&E and intangible assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
230 Other cash receipts from sales of equity or debt instruments of other entities, classified as investing activities Concept (Monetary) For Period Debit ifrs-full:OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities
231 Disposals of financial instruments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities
232 Proceeds from sale of subsidiaries Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
233 Net cash flow used in investment activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
234 Cash flows from (used in) financing activities [abstract] Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
235 Proceeds from issuance of common stock Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
236 Proceeds from borrowings from third parties Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
237 Proceeds from borrowings from group companies Concept (Monetary) For Period Debit ifrs-full:CashAdvancesAndLoansFromRelatedParties
238 Repayment of borrowings from third parties Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
239 Dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
240 Acquisition of treasury shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
241 Net cash flow provided by/(used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
242 Net increase in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
243 Exchange differences Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
244 Cash and cash equivalents at beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
245 Cash and cash equivalents at end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
246 000600 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Network

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 http://www.Atento.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINEQUITY
247 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
248 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
249 Equity [member] Member ifrs-full:EquityMember
250 Share capital Member ifrs-full:IssuedCapitalMember
251 Share premium [member] Member ifrs-full:SharePremiumMember
252 Treasury Shares Member Member ifrs-full:TreasurySharesMember
253 Reserve to acquisition of non - controlling interest [member] Member atto:ReserveForAcquisitionOfNoncontrollingInterestMember
254 Retained earnings/(losses) Member ifrs-full:RetainedEarningsMember
255 Translation differences Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
256 Cash flow/net investment hedge Member ifrs-full:ReserveOfCashFlowHedgesMember
257 Stock-based compensation Member ifrs-full:ReserveOfSharebasedPaymentsMember
258 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
259 Total owners of the parent company Member ifrs-full:EquityAttributableToOwnersOfParentMember
260 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
261 Equity at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
262 Comprehensive income/(loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
263 Loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
264 Other comprehensive income/(loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
265 Compensation of retained losses Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings
266 Reserve for acquisition of non - controlling interest Concept (Monetary) For Period Debit atto:ChangeInReserveForAcquisitionOfNonControllingInterest
267 Increase of share capital Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
268 Dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
269 Capitalization of PECs Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
270 Key management personnel compensation, share-based payment Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
271 Stock-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
272 IPO Proceeds, gross Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
273 IPO costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
274 Other movements Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
275 Non controlling interest participation Concept (Monetary) For Period Debit atto:NonControllingInterestParticipation
276 Non-controlling interest Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
277 Aquisition of treasury shares Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
278 Reserve for acquisition of non-controlling interest Concept (Monetary) As Of Credit atto:ReserveForAcquisitionOfNonControllingInterest
279 Monetary correction caused by hyperinflation Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnNetMonetaryPosition
280 Dividends Declared Concept (Monetary) For Period Credit atto:DividendsDeclared
281 Equity at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
282 010101 - Disclosure - COMPANY ACTIVITY AND CORPORATE INFORMATION Network

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283 Implied Table Table

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284 Disclosure of notes and other explanatory information [abstract] Abstract atto:Disclosureofnotesandotherexplanatoryinformationabstract
285 Disclosure of notes and other explanatory information [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory
286 010201 - Disclosure - BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS Network

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 http://www.Atento.com/role/BASISOFPRESENTATIONOFTHECONSOLIDATEDFINANCIALSTATEMENTS
287 Implied Table Table

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288 Disclosure of basis of consolidation [abstract] Abstract atto:Disclosureofbasisofconsolidationabstract
289 Disclosure of basis of consolidation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
290 010301 - Disclosure - ACCOUNTING POLICIES Network

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291 Implied Table Table

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292 Disclosure Of Significant Accounting Policies Abstract Abstract atto:DisclosureOfSignificantAccountingPoliciesAbstract
293 Disclosure Of Summary Of Significant Accounting Policies Explanatory Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
294 010401 - Disclosure - MANAGEMENT OF FINANCIAL RISK Network

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295 Implied Table Table

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296 Disclosure of risk management strategy related to hedge accounting [abstract] Abstract ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract
297 Disclosure of financial risk management [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
298 010501 - Disclosure - BUSINESS COMBINATIONS Network

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299 Implied Table Table

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300 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
301 Disclosure of business combinations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
302 010601 - Disclosure - INTANGIBLE ASSETS Network

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303 Implied Table Table

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304 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
305 Disclosure of intangible assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
306 010701 - Disclosure - GOODWILL Network

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307 Implied Table Table

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308 Disclosure of reconciliation of changes in goodwill [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract
309 Disclosure of goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
310 010801 - Disclosure - IMPAIRMENT OF ASSETS Network

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311 Implied Table Table

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312 Disclosure of impairment loss and reversal of impairment loss [abstract] Abstract ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract
313 Disclosure of impairment of assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfImpairmentOfAssetsExplanatory
314 010901 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (PP&E) Network

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315 Implied Table Table

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316 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
317 Disclosure of property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
318 011001 - Disclosure - LEASES AND SIMILAR ARRANGEMENTS Network

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 http://www.Atento.com/role/LEASESANDSIMILARARRANGEMENTS
319 Implied Table Table

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320 Disclosure of recognised finance lease as assets by lessee [abstract] Abstract ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract
321 Disclosure of leases [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
322 011101 - Disclosure - FINANCIAL ASSETS Network

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323 Implied Table Table

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324 Disclosure of financial assets [abstract] Abstract ifrs-full:DisclosureOfFinancialAssetsAbstract
325 Disclosure of financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsExplanatory
326 011201 - Disclosure - OTHER FINANCIAL ASSETS Network

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327 Implied Table Table

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328 Miscellaneous assets [abstract] Abstract ifrs-full:MiscellaneousAssetsAbstract
329 Disclosure of other assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
330 011301 - Disclosure - TRADE AND OTHER RECEIVABLES Network

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331 Implied Table Table

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332 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
333 Disclosure of trade and other receivables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
334 011401 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS Network

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335 Implied Table Table

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336 Disclosure of detailed information about financial instruments [abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
337 Disclosure of derivative financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
338 011501 - Disclosure - CASH AND CASH EQUIVALENTS Network

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339 Implied Table Table

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340 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
341 Disclosure of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
342 011601 - Disclosure - FINANCIAL LIABILITIES Network

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343 Implied Table Table

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344 Disclosure of financial liabilities [abstract] Abstract ifrs-full:DisclosureOfFinancialLiabilitiesAbstract
345 Disclosure of financial liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
346 011701 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIES
347 Implied Table Table

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348 Borrowings [abstract] Abstract ifrs-full:BorrowingsAbstract
349 Disclosure of debt instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDebtSecuritiesExplanatory
350 011801 - Disclosure - TRADE AND OTHER NON TRADE PAYABLES Network

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351 Implied Table Table

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352 Trade and other payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
353 Disclosure of trade and other payables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
354 011901 - Disclosure - EQUITY Network

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355 Implied Table Table

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356 Disclosure of classes of share capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
357 Disclosure of share capital, reserves and other equity interest [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
358 012001 - Disclosure - TAX MATTERS Network

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359 Implied Table Table

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360 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
361 Disclosure of income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
362 012101 - Disclosure - PROVISIONS AND CONTINGENCIES Network

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 http://www.Atento.com/role/PROVISIONSANDCONTINGENCIES
363 Implied Table Table

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364 Disclosure of contingent liabilities [abstract] Abstract ifrs-full:DisclosureOfContingentLiabilitiesAbstract
365 Disclosure of contingent liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfContingentLiabilitiesExplanatory
366 012201 - Disclosure - REVENUE AND EXPENSES Network

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 http://www.Atento.com/role/REVENUEANDEXPENSES
367 Implied Table Table

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368 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
369 Revenue and expenses [text block] Concept (Text Block (HTML)) For Period atto:Revenueandexpensestextblock
370 012301 - Disclosure - SEGMENT INFORMATION Network

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371 Implied Table Table

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372 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
373 Disclosure of operating segments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
374 012401 - Disclosure - EARNINGS/(LOSS) PER SHARE Network

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375 Implied Table Table

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376 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
377 Disclosure of earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
378 012501 - Disclosure - COMMITMENTS Network

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379 Implied Table Table

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380 Disclosure of commitments [abstract] Abstract atto:Disclosureofcommitmentsabstract
381 Disclosure of commitments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
382 012601 - Disclosure - RELATED PARTIES Network

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 http://www.Atento.com/role/RELATEDPARTIES
383 Implied Table Table

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384 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
385 Disclosure of related party [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
386 012701 - Disclosure - SUBSEQUENT EVENT Network

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387 Implied Table Table

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388 Disclosure of non-adjusting events after reporting period [abstract] Abstract ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract
389 Disclosure of events after reporting period [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
390 020302 - Disclosure - ACCOUNTING POLICIES (Policies) Network

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391 Implied Table Table

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392 Disclosure Of Significant Accounting Policies Abstract Abstract atto:DisclosureOfSignificantAccountingPoliciesAbstract
393 Description of accounting policy for principles of consolidation explanatory [text block] Concept (Text Block (HTML)) For Period atto:DescriptionOfAccountingPolicyForPrinciplesOfConsolidationExplanatory
394 Description of accounting policy for business combinations and goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory
395 Description of accounting policy for functional currency [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory
396 Description of accounting policy for foreign currency translation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
397 Description of accounting policy for segment reporting [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
398 Description of accounting policy for intangible assets other than goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
399 Description of accounting policy for property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
400 Description of accounting policy for impairment of assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
401 Description of accounting policy for financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
402 Description of accounting policy for trade and other receivables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
403 Description of accounting policy for determining components of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
404 Description of accounting policy for borrowing costs [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatory
405 Description of accounting policy for trade and other payables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory
406 Description of accounting policy for derivative financial instruments and hedging [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory
407 Description of accounting policy for issued capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
408 Description Of Accounting Policy For Treasury Shares Explanatory Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTreasurySharesExplanatory
409 Description of accounting policy for provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
410 Description of accounting policy for share-based payment transactions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
411 Description of accounting policy for termination benefits [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTerminationBenefits
412 Description of accounting policy for income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
413 Description of accounting policy for recognition of revenue [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
414 Description of accounting policy for interest income and expense [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory
415 Description of accounting policy for leases [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
416 Description of accounting policy for explanation of sources of estimation uncertainty with significant risk of causing material adjustment Concept (Text Block (HTML)) For Period atto:DescriptionOfAccountingPolicyOfAssumptionAboutFutureWithSignificantRiskOfResultingInMaterialAdjustments
417 Description of accounting policy for subsidiaries [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSubsidiariesExplanatory
418 Description of accountng policy for disclosure of expected impact of initial application of new standards or interpretations [text block] Concept (Text Block (HTML)) For Period atto:DescriptionOfAccountingPolicyForExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
419 030303 - Disclosure - ACCOUNTING POLICIES (Tables) Network

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420 Implied Table Table

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421 Disclosure Of Significant Accounting Policies Abstract Abstract atto:DisclosureOfSignificantAccountingPoliciesAbstract
422 Disclosure of composition of group [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCompositionOfGroupExplanatory
423 030403 - Disclosure - MANAGEMENT OF FINANCIAL RISK (Tables) Network

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 http://www.Atento.com/role/MANAGEMENTOFFINANCIALRISKTables
424 Disclosure of risk management strategy related to hedge accounting [table] Table

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 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
425 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
426 Types Of Risks [member] Member ifrs-full:TypesOfRisksMember
427 Market risk [member] Member ifrs-full:MarketRiskMember
428 Currency risk [member] Member ifrs-full:CurrencyRiskMember
429 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
430 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
431 Currency swap contract [member] Member ifrs-full:CurrencySwapContractMember
432 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
433 Sensitivity analysis for types of market risk [text block] Concept (Text Block (HTML)) For Period ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk
434 Disclosure of detailed information about hedging instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory
435 Disclosure of information about credit exposures designated as measured at fair value through profit or loss [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutCreditExposuresDesignatedAsMeasuredAtFairValueThroughProfitOrLossExplanatory
436 Disclosure of information about liquidity arrangements, guarantees or other commitments with third parties that may affect fair value or risk of interests in structured entities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory
437 030503 - Disclosure - BUSINESS COMBINATIONS (Tables) Network

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438 Disclosure of detailed information about business combination [table] Table

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 ifrs-full:DisclosureOfBusinessCombinationsTable
439 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
440 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
441 Business combinations [member] Member ifrs-full:BusinessCombinationsMember
442 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
443 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
444 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
445 Disclosure of detailed information about business combinations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
446 Description Of Nature And Financial Effect Of Business Combinations During Period Concept (Text/String) For Period ifrs-full:DescriptionOfNatureAndFinancialEffectOfBusinessCombinationsDuringPeriod
447 030603 - Disclosure - INTANGIBLE ASSETS (Tables) Network

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448 Implied Table Table

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449 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
450 Disclosure of detailed information about intangible assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
451 030703 - Disclosure - GOODWILL (Tables) Network

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452 Implied Table Table

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453 Disclosure of reconciliation of changes in goodwill [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract
454 Disclosure of reconciliation of changes in goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
455 030803 - Disclosure - IMPAIRMENT OF ASSETS (Tables) Network

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456 Implied Table Table

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457 Disclosure of impairment loss and reversal of impairment loss [abstract] Abstract ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract
458 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory
459 030903 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (PP&E) (Tables) Network

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 http://www.Atento.com/role/PROPERTYPLANTANDEQUIPMENTPPETables
460 Implied Table Table

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461 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
462 Disclosure of detailed information about property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
463 031003 - Disclosure - LEASES AND SIMILAR ARRANGEMENTS (Tables) Network

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 http://www.Atento.com/role/LEASESANDSIMILARARRANGEMENTSTables
464 Implied Table Table

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465 Disclosure of recognised finance lease as assets by lessee [abstract] Abstract ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract
466 Disclosure of recognised finance lease as assets by lessee [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory
467 Disclosure of finance lease and operating lease by lessee [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
468 031203 - Disclosure - OTHER FINANCIAL ASSETS (Tables) Network

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469 Implied Table Table

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470 Miscellaneous assets [abstract] Abstract ifrs-full:MiscellaneousAssetsAbstract
471 Details of other financial assets explanatory Concept (Text Block (HTML)) For Period atto:DetailsOfOtherFinancialAssetsExplanatory
472 031303 - Disclosure - TRADE AND OTHER RECEIVABLES (Tables) Network

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 http://www.Atento.com/role/TRADEANDOTHERRECEIVABLESTables
473 Implied Table Table

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474 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
475 Disclosure of trade and other receivables breakdown [text block] Concept (Text Block (HTML)) For Period atto:DisclosureOfTradeAndOtherReceivablesBreakdown
476 Disclosure of provision matrix [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProvisionMatrixExplanatory
477 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory
478 Disclosure of credit risk exposure [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExposureExplanatory
479 031403 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables) Network

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480 Disclosure of detailed information about hedges [table] Table

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 ifrs-full:DisclosureOfHedgeAccountingTable
481 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
482 Hedges [member] Member ifrs-full:TypesOfHedgesMember
483 Cash flow hedges [member] Member ifrs-full:CashFlowHedgesMember
484 Hedges of net investment in foreign operations [member] Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
485 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
486 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
487 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
488 Currency swap contract [member] Member ifrs-full:CurrencySwapContractMember
489 Disclosure of detailed information about hedges [line items] LineItems ifrs-full:DisclosureOfHedgeAccountingLineItems
490 Details Of Derivative Financial Instruments Explanatory Concept (Text Block (HTML)) For Period atto:DetailsOfDerivativeFinancialInstrumentsExplanatory
491 Disclosure of detailed information about hedges [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutHedgesExplanatory
492 031503 - Disclosure - CASH AND CASH EQUIVALENTS (Tables) Network

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493 Implied Table Table

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494 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
495 Disclosure of restricted cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRestrictedCashAndCashEquivalentsExplanatory
496 031603 - Disclosure - FINANCIAL LIABILITIES (Tables) Network

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497 Implied Table Table

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498 Disclosure of financial liabilities [abstract] Abstract ifrs-full:DisclosureOfFinancialLiabilitiesAbstract
499 Disclosure of maturity analysis for non-derivative financial liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
500 Disclosure of detailed information about financial liabilities table [text block] Concept (Text Block (HTML)) For Period atto:DisclosureOfDetailedInformationAboutFinancialLiabilitiesTableExplanatory
501 031703 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES (Tables) Network

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502 Disclosure of detailed information about borrowings [table] Table

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505 Atento Luxco 1, S.A. [member] Member atto:AtentoLuxcoOneSaMember
506 Contingent Value Instrument [member] Member atto:ContingentValueInstrumentMember
507 Maturity [axis] Axis ifrs-full:MaturityAxis
508 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
509 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
510 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
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514 Morocco, Dirhams [member] Member currency:MAD
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516 Disclosure of borrowings [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
517 Disclosure of detailed information about borrowings [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
518 031803 - Disclosure - TRADE AND OTHER NON TRADE PAYABLES (Tables) Network

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519 Implied Table Table

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520 Trade and other payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
521 Disclosure of detailed information about trade and other payables explanatory Concept (Text Block (HTML)) For Period atto:Disclosureofdetailedinformationabouttradeandotherpayablesexplanatory
522 031903 - Disclosure - EQUITY (Tables) Network

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523 Disclosure of fair value measurement of equity [table] Table

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527 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
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529 The 2014 Grant [member] Member atto:TheTwentyFourteenGrantMember
530 The 2016 Grant [member] Member atto:TheTwentySixteenGrantMember
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532 The 2018 Grant [member] Member atto:ThetwentyEighteenGrantMember
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536 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
537 Disclosure of fair value measurement of equity [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfEquityExplanatory
538 Disclosure of number and weighted average exercise prices of other equity instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
539 032003 - Disclosure - TAX MATTERS (Tables) Network

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540 Implied Table Table

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541 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
542 Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
543 Disclosure of components of Income tax explanatory Concept (Text Block (HTML)) For Period atto:DisclosureOfComponentsOfIncomeTaxExplanatory
544 Disclosure of deferred taxes [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
545 Disclosure of deferred tax expense arising from write-down or reversal of write-down of deferred tax asset Concept (Text Block (HTML)) For Period atto:DisclosureOfDeferredTaxExpenseArisingFromWritedownOrReversalOfWritedownOfDeferredTaxAssetExplanatory
546 Disclosure of tax receivables and payables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTaxReceivablesAndPayablesExplanatory
547 032103 - Disclosure - PROVISIONS AND CONTINGENCIES (Tables) Network

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548 Implied Table Table

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549 Disclosure of contingent liabilities [abstract] Abstract ifrs-full:DisclosureOfContingentLiabilitiesAbstract
550 Disclosure of provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProvisionsExplanatory
551 032203 - Disclosure - REVENUE AND EXPENSES (Tables) Network

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552 Disclosure of products and services [table] Table

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556 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
557 Counter parties [member] Member ifrs-full:CounterpartiesMember
558 Third Parties [Member] Member atto:ThirdPartiesMember
559 Disclosure of products and services [line items] LineItems ifrs-full:DisclosureOfProductsAndServicesLineItems
560 Disclosure of expenses [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
561 Disclosure of other operating expense [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingExpenseExplanatory
562 032303 - Disclosure - SEGMENT INFORMATION (Tables) Network

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563 Implied Table Table

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564 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
565 Disclosure of geographical areas [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
566 Disclosure of major customers [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSegmentsMajorCustomersExplanatory
567 032403 - Disclosure - EARNINGS/(LOSS) PER SHARE (Tables) Network

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568 Implied Table Table

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569 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
570 Earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
571 032503 - Disclosure - COMMITMENTS (Tables) Network

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572 Implied Table Table

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573 Disclosure of commitments [abstract] Abstract atto:Disclosureofcommitmentsabstract
574 Disclosure of information about liquidity arrangements, guarantees or other commitments with third parties that may affect fair value or risk of interests in structured entities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory
575 Disclosure of finance lease and operating lease by lessee [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
576 032603 - Disclosure - RELATED PARTIES (Tables) Network

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577 Implied Table Table

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578 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
579 Disclosure of transactions between related parties [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
580 040201 - Disclosure - BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS - BUSINESS COMBINATIONS (Details) Network

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585 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
586 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
587 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
588 040202 - Disclosure - BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS - OPERATING SEGMENTS (Details) Network

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589 Disclosure of operating segments [table] Table

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592 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
593 Atento Morocco [member] Member atto:AtentoMoroccoMember
594 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
595 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
596 040301 - Disclosure - ACCOUNTING POLICIES - INTANGIBLES (Details) Network

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597 Disclosure of detailed information about intangible assets [table] Table

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600 Computer software [member] Member ifrs-full:ComputerSoftwareMember
601 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
602 Range [axis] Axis ifrs-full:RangeAxis
603 Ranges [member] Member ifrs-full:RangesMember
604 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
605 Top of range [member] Member ifrs-full:TopOfRangeMember
606 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
607 Useful lives, intangible assets other than goodwill Concept (Text/String) For Period atto:Usefullivesintangibleassetsotherthangoodwill
608 040302 - Disclosure - ACCOUNTING POLICIES - PPE (Details) Network

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609 Disclosure of detailed information about property, plant and equipment [table] Table

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610 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
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612 Buildings [member] Member ifrs-full:BuildingsMember
613 Leasehold improvements [member] Member ifrs-full:LeaseholdImprovementsMember
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615 Fixtures and fittings [member] Member ifrs-full:FixturesAndFittingsMember
616 Communication and network equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
617 Vehicles [member] Member ifrs-full:VehiclesMember
618 Other property, plant and equipment [member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
619 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
620 Useful lives, property, plant and equipment, years Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
621 040303 - Disclosure - ACCOUNTING POLICIES - SHARE-BASED (Details) Network

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622 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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624 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
625 Restricted Stocks Units [member] Member atto:RestrictedstockunitsMember
626 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
627 Number of instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
628 Number of employees Concept (Decimal) As Of ifrs-full:NumberOfEmployees
629 040304 - Disclosure - ACCOUNTING POLICIES - VOTING POWER (Details) Network

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630 Disclosure of subsidiaries [table] Table

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632 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
633 Teleatento del Peru. S.A.C [member] Member atto:TeleatentoDelPeruSacMember
634 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
635 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
636 Class A [Member] Member atto:ClassastockMember
637 Class B [Member] Member atto:ClassbstockMember
638 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
639 Proportion of voting rights held in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInSubsidiary
640 040305 - Disclosure - ACCOUNTING POLICIES - SUBSIDIARIES (Details) Network

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641 Disclosure of subsidiaries [table] Table

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643 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
644 Atento Luxco 1, S.A. [member] Member atto:AtentoLuxcoOneSaMember
645 Atalaya Luxco 2. S.a.r.l. [member] Member atto:AtentoLuxcoTwoSarlMember
646 Atalaya Luxco 3. S.a.r.l. [member] Member atto:AtentoLuxcoThreeSarlMember
647 Atalaya Luxco Midco, S.a.r.l. [member] Member atto:AtalayaLuxcoMidcoSarlMember
648 Atento Argentina. S.A [member] Member atto:AtentoAgrentinaSaMember
649 Atento Argentina. S.A Atalaya Luxco 3 [member] Member atto:AtentoAgrentinaSaAtalayaLuxco3Member
650 Global Rossolimo. S.L.U [member] Member atto:GlobalRossolimoSluMember
651 Atento Spain Holdco. S.L.U [member] Member atto:AtentoSpainHoldicoSluMember
652 Atento Spain Holdco 6. S.L.U [member] Member atto:AtentoSpainHoldicoSixSluMember
653 Atento Spain Holdco 2. S.A.U [member] Member atto:AtentoSpainHoldicoTwoSauMember
654 Atento Teleservicios Espana S.A.U. [member] Member atto:AtentoTeleserviciosEspanaSauMember
655 Atento Servicios Tecnicos y Consultoria S.A.U [member] Member atto:AtentoServiciosTecnicoYConsultoriaSauMember
656 Atento Impulsa. S.A.U [member] Member atto:AtentoImpulsaSauMember
657 Atento Servicios Auxiliares de Contact Center. S.A.U [member] Member atto:AtentoServiciosAuxillaresDeContactCenterSauMember
658 Atento B V [member] Member atto:AtentoBvMember
659 Teleatento del Peru. S.A.C Atento Holding Chile. S.A. [member] Member atto:TeleatentoDelPeruSacAtentoHoldingChileSAMember
660 Teleatento del Peru. S.A.C [member] Member atto:TeleatentoDelPeruSacMember
661 Woknal. S.A. [member] Member atto:WoknalSaMember
662 Atento Colombia. S.A. [member] Member atto:AtentoColombiaSaMember
663 Atento Holding Chile. S.A. [member] Member atto:AtentoHoldingChileSaMember
664 Atento Holding Chile. S.A. Atento Spain Holdco 2 [member] Member atto:AtentoHoldingChileSaAtentoSpainHoldicoTwoSauMember
665 Atento Educacion Limitada [member] Member atto:AtentoEducacionLimidataMember
666 Atento Educacion Limitada Atento Holding Chile. S.A. [member] Member atto:AtentoEducacionLimitadaAtentoHoldingChileSaMember
667 Atento Colombia. S.A. Atento Servicios Auxiliares de Contact Center. S.L.U. [member] Member atto:AtentoColombiaSaAtentoServiciosAuxillaresDeContactCenterSauMember
668 Atento Colombia. S.A. Atento Servicios Tecnicos y Consultoria. S.L.U. [member] Member atto:AtentoColombiaSaAtentoServiciosTecnicoYConsultoriaSauMember
669 Atento Colombia. S.A. Atento Teleservicios Espana. S.A.U. [member] Member atto:AtentoColombiaSaAtentoTeleserviciosEspanaSauMember
670 Atento Colombia. S.A. Teleatento del Peru SAC. [member] Member atto:AtentoColombiaSaTeleatentoDelPeruSacMember
671 Atento Centro de Formacion Tecnica [member] Member atto:AtentoCentroDeFormacionTecnicaLimitadaMember
672 Atento Centro de Formacion Tecnica Atento Holding Chile. S.A. [member] Member atto:AtentoCentroDeFormacionTecnicaLimitadaAtentoHoldingChileSaMember
673 Atento Spain Holdco 4. S.A.U [member] Member atto:AtentoSpainHoldcoFourSauMember
674 Atento Brasil S.A. [member] Member atto:AtentoBrasilSAMember
675 Atento Brasil. S.A Atento Luxco 1, S.A. [member] Member atto:AtentoBrasilSAAtentoLuxcoOneSaMember
676 Atento Brasil SA Atento Spain Holdco SLU [Member] Member atto:AtentoBrasilSAAtentoSpainHoldcoSLUMember
677 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
678 R Brasil Solucoes S.A. Flavio Luiz Rossetto [member] Member atto:RBrasilSolucoesSaFRosettoMember
679 R Brasil Solucoes S.A. Jorge Luiz Rossetto [member] Member atto:RBrasilSolucoesSaJRosettoMember
680 Atento Spain Holdco 5. S.L.U [member] Member atto:AtentoSpainHoldcoFiveSauMember
681 Atento Mexico Holdco S. de R.L. de [member] Member atto:AtentoMexicoHoldcoSDeRlDeMember
682 Atento Mexico Holdco S. de R.L. de C.V. Atento Spain Holdco. S.L.U. [member] Member atto:AtentoMexicoHoldcoSDeRlDeAtentoSpainHoldicoSluMember
683 Atento Puerto Rico. Inc. [member] Member atto:AtentoPertoRicoIncMember
684 Contact US Teleservices Inc. [member] Member atto:ContactUsTeleservicesIncMember
685 Atento Panama. S.A. [member] Member atto:AtentoPanamaSaMember
686 Atento Atencion y Servicios. S.A. de C.V. [member] Member atto:AtentoAtencionYServiciosSaDeMember
687 Atento Atencion y Servicios. S.A. de C.V. Atento Servicios. S.A. de C.V. [member] Member atto:AtentoAtencionYServiciosSaDeCVAtentoServiciosSaDeCVMember
688 Atento Servicios. S.A. de C.V. [member] Member atto:AtentoServiciosSaDeMember
689 Atento Servicios. S.A. de C.V. Atento Atencion y Servicios. S.A. de C.V. [member] Member atto:AtentoServiciosSaDeCVAtentoAtencionYServiciosSaDeCVMember
690 Atento Centroamerica. S.A. [member] Member atto:AtentoCentroamericaSaMember
691 Atento Centroamerica. S.A. Atento El Salvador S.A. de C.V. [member] Member atto:AtentoCentroamericaSaAtentoElSalvadorSaDeCvMember
692 Atento de Guatemala. S.A. [member] Member atto:AtentoGuatemalaSaMember
693 Atento de Guatemala. S.A. Atento El Salvador S.A. de C.V. [member] Member atto:AtentoGuatemalaSaAtentoElSalvadorSaDeCvMember
694 Atento El Salvador. S.A. de C.V. [member] Member atto:AtentoElSalvadorSaDeCvMember
695 Atento Chile. S.A. Atento Bv [member] Member atto:AtentoChileSaAtentoBvMember
696 Atento El Salvador. S.A. de C.V. Atento Centroamerica. S.A. [member] Member atto:AtentoElSalvadorSaDeCAtentoCentroamericaSaMember
697 Atento Nicaragua S.A [member] Member atto:AtentoNicaraguaSaMember
698 Atento Nicaragua S.A Atento Centroamerica. S.A. [member] Member atto:AtentoNicaraguaSaAtentoCentroamericaSaMember
699 Atento Nicaragua Sa Atento Mexico Holdco S de RL de CV [Member] Member atto:AtentoNicaraguaSaAtentoMexicoHoldcoSdeRLdeCVMember
700 Atento Chile. S.A. [member] Member atto:AtentochilesaMember
701 Interservicer - Servicos de BPO Ltda [Member] Member atto:InterservicerServicosDeBPOLtdaMember
702 Interfile Servicos De BPO Ltda [Member] Member atto:InterfileServicosDeBPOLtdaMember
703 Atento Costa Rica S.A Atento Centroamerica. S.A. [member] Member atto:AtentoCostaRicaSaAtentoCentroamericaSaMember
704 Atento Costa Rica S.A [member] Member atto:AtentoCostaRicaSaMember
705 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
706 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
707 Country of incorporation of subsidiary Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
708 Description of nature of entity's operations and principal activities Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
709 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
710 Name of parent entity Concept (Text/String) For Period ifrs-full:NameOfParentEntity
711 040401 - Disclosure - MANAGEMENT OF FINANCIAL RISK - BRAZILIAN DEBENTURES (Details) Network

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712 Disclosure of detailed information about borrowings [table] Table

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714 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
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716 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
717 Financial debt with third parties bearing interests at variable rates, percentage Concept (Percent) As Of atto:PercentageFinancialLiabilitiesWithVariableRates
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719 Total indebtedness Concept (Monetary) As Of Credit ifrs-full:Borrowings
720 1% change in interest rates, impact on net interest expense Concept (Monetary) As Of Debit atto:OnePercentChangeInterestRatesImpactInterestExpense
721 040402 - Disclosure - MANAGEMENT OF FINANCIAL RISK - SENIOR SECURED NOTES (Details) Network

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722 Disclosure of risk management strategy related to hedge accounting [table] Table

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725 Market risk [member] Member ifrs-full:MarketRiskMember
726 Interest rate risk [member] Member ifrs-full:InterestRateRiskMember
727 CreditRiskMember Member ifrs-full:CreditRiskMember
728 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
729 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
730 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
731 Currency swap contract [member] Member ifrs-full:CurrencySwapContractMember
732 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
733 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
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736 Brazilian Debentures [member] Member atto:BrazilianDebenturesMember
737 Maturity [axis] Axis ifrs-full:MaturityAxis
738 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
739 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
740 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
741 Financial instruments designated as hedging instruments, at fair value Concept (Monetary) As Of ifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue
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743 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
744 040405 - Disclosure - MANAGEMENT OF FINANCIAL RISK - INTEREST RATE (Details) Network

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745 Disclosure of risk management strategy related to hedge accounting [table] Table

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748 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
749 Currency swap contract [member] Member ifrs-full:CurrencySwapContractMember
750 Range [axis] Axis ifrs-full:RangeAxis
751 Ranges [member] Member ifrs-full:RangesMember
752 Top of range [member] Member ifrs-full:TopOfRangeMember
753 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
754 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
755 Market risk [member] Member ifrs-full:MarketRiskMember
756 Interest rate risk [member] Member ifrs-full:InterestRateRiskMember
757 Currency risk [member] Member ifrs-full:CurrencyRiskMember
758 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
759 Financial instruments designated as hedging instruments, at fair value Concept (Monetary) As Of ifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue
760 Percentage of reasonably possible change, market risk [Concept] Concept (Percent) As Of atto:PercentageOfReasonablyPossibleChangeMarketRisk
761 040406 - Disclosure - MANAGEMENT OF FINANCIAL RISK - FOREIGN CURRENCY RISK (Details) Network

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 http://www.Atento.com/role/MANAGEMENTOFFINANCIALRISKFOREIGNCURRENCYRISKDetails
762 Disclosure of risk management strategy related to hedge accounting [table] Table

*

*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
763 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
764 Types Of Risks [member] Member ifrs-full:TypesOfRisksMember
765 Market risk [member] Member ifrs-full:MarketRiskMember
766 Currency risk [member] Member ifrs-full:CurrencyRiskMember
767 Euro to Argentinian Pesos [Member] Member atto:EuroToArgentianPesoMember
768 Euro to Colombian Pesos [Member] Member atto:EuroToColombianPesoMember
769 Euro to Dirham Moroccan [Member] Member atto:EuroToDirhamMoroccanMember
770 Euro to Uruguayan Pesos [Member] Member atto:EuroToUruguayanMember
771 Euro to Peruvian Nuevos Soles [Member] Member atto:EuroToPeruvianNuevosSolesMember
772 Euro to USD [Member] Member atto:EuroToUSDMember
773 Chilean Pesos to USD [Member] Member atto:ChileanPesosToUSDMember
774 Mexican Pesos to USD [Member] Member atto:MexicanPesosToUSDMember
775 Brazilian Reais to USD [Member] Member atto:BrazilianReaisToUSDMember
776 Guatemalan Quetzal to USD [Member] Member atto:GuatemalanQuertzalToUSDMember
777 Colombian Pesos to USD [Member] Member atto:ColombianPesosToUSDMember
778 Peruvian Nuevos Soles to USD [Member] Member atto:PeruvianNuevosSolesToUSDMember
779 Uruguayan Pesos to USD [Member] Member atto:UruguayanPesosToUSDMember
780 United States Dolar to Euro [Member] Member atto:USDToEuroMember
781 United States Dolar to MXN [Member] Member atto:USDToMexicanPesosMember
782 Chilean Pesos to Euro [Member] Member atto:ChileanPesosToEuroMember
783 Sensitivity Analysis [axis] Axis atto:SensitivityAnalysisAxis
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785 Functional currency [member] Member atto:FunctionalCurrencyMember
786 Asset currency [member] Member atto:AssetCurrencyMember
787 Liability Currency [Member] Member atto:LiabilityCurrencyMember
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790 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
791 Financial assets at fair value through profit or loss Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
792 Financial liabilities at fair value through profit or loss Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLoss
793 % Appreciation of asset and liability currency versus the functional currency Concept (Percent) As Of atto:PercentualAppreciationOfAssetLiabilityCurrencyVSFunctionalCurrency
794 Appreciation of asset and liability currency versus the functional currency Concept (Decimal) As Of atto:AppreciationOfAssetLiabilityCurrencyVSFunctionalCurrency
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796 Appreciation of financial assets in functional currency Concept (Monetary) As Of Debit atto:AppreciationOfFinancialAssetsInFunctionalCurrency
797 Appreciation of financial liabilities in functional currency Concept (Monetary) As Of Credit atto:AppreciationOfFinancialLiabilitiesInFunctionalCurrency
798 040407 - Disclosure - MANAGEMENT OF FINANCIAL RISK - FINANCIAL DEBT WITH THIRD PARTY (Details) Network

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 http://www.Atento.com/role/MANAGEMENTOFFINANCIALRISKFINANCIALDEBTWITHTHIRDPARTYDetails
799 Implied Table Table

*

*

 implied:Table
800 Disclosure of risk management strategy related to hedge accounting [abstract] Abstract ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract
801 Secured bank loans received Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
802 Notes and debentures issued Concept (Monetary) As Of Credit ifrs-full:NotesAndDebenturesIssued
803 Unsecured bank loans received Concept (Monetary) As Of Credit ifrs-full:UnsecuredBankLoansReceived
804 Finance lease liabilities Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
805 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
806 Contingent value instrument Concept (Monetary) As Of Credit atto:ContingentValueInstrument
807 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
808 040501 - Disclosure - BUSINESS COMBINATIONS - RBRASIL / INTERFILE (Details) Network

*

*

 http://www.Atento.com/role/BUSINESSCOMBINATIONSRBRASILINTERFILEDetails
809 Disclosure of detailed information about business combination [table] Table

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*

 ifrs-full:DisclosureOfBusinessCombinationsTable
810 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
811 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
812 Business combinations [member] Member ifrs-full:BusinessCombinationsMember
813 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
814 Interfile Servicos De BPO Ltda [Member] Member atto:InterfileServicosDeBPOLtdaMember
815 Interservicer - Servicos de BPO Ltda [Member] Member atto:InterservicerServicosDeBPOLtdaMember
816 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
817 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
818 Equity [member] Member ifrs-full:EquityMember
819 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
820 Classes of acquired receivables [axis] Axis ifrs-full:ClassesOfAcquiredReceivablesAxis
821 Classes of acquired receivables [member] Member ifrs-full:ClassesOfAcquiredReceivablesMember
822 Gross contractual amount for trade receivables [member] Member atto:GrossContractualAmountForTradeReceivablesMember
823 Gross contractual amount for trade receivables uncollectible [member] Member atto:GrossContractualAmountForTradeReceivablesUncollectibleMember
824 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
825 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
826 Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
827 Contingent consideration arrangements and indemnification assets recognised as of acquisition date Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
828 Description of arrangement for contingent consideration arrangements and indemnification assets Concept (Text/String) For Period ifrs-full:DescriptionOfArrangementForContingentConsiderationArrangementsAndIndemnificationAssets
829 Consideration transferred, acquisition-date fair value Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
830 Financial liabilities recognised as of acquisition date Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesRecognisedAsOfAcquisitionDate
831 Transaction costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
832 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:GrossContractualAmountsReceivableForAcquiredReceivables
833 Company consolidated revenue Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
834 Company consolidated loss Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
835 Revenue of acquiree since acquisition date Concept (Monetary) For Period Credit ifrs-full:RevenueOfAcquiree
836 Profit (loss) of acquiree since acquisition date Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfAcquiree
837 040502 - Disclosure - BUSINESS COMBINATIONS - FAIR VALUE RBRASIL (Details) Network

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*

 http://www.Atento.com/role/BUSINESSCOMBINATIONSFAIRVALUERBRASILDetails
838 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
839 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
840 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
841 Business combinations [member] Member ifrs-full:BusinessCombinationsMember
842 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
843 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
844 Assets [abstract] Abstract ifrs-full:AssetsAbstract
845 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
846 Escrow account Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsRecognisedAsOfAcquisitionDate
847 Deferred taxes assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssetsRecognisedAsOfAcquisitionDate
848 Other credits Concept (Monetary) As Of Debit atto:Otherassetsrecognisedasofacquisitiondate
849 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
850 Identifiable intangible assets recognised as of acquisition date Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
851 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:GrossContractualAmountsReceivableForAcquiredReceivables
852 Liabilities [abstract] Abstract ifrs-full:LiabilitiesAbstract
853 Other obligations Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesRecognisedAsOfAcquisitionDate
854 Contingent liabilities recognised as of acquisition date Concept (Monetary) As Of Credit ifrs-full:ContingentLiabilitiesRecognisedAsOfAcquisitionDate
855 Legal Proceedings Provision Concept (Monetary) As Of Credit ifrs-full:LegalProceedingsProvision
856 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
857 Total net liabilities assumed at fair value Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
858 Non- interest Concept (Monetary) As Of Credit ifrs-full:OtherNonfinancialLiabilities
859 Goodwill on acquisition Concept (Monetary) As Of Debit ifrs-full:Goodwill
860 Total of the consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
861 Purchase price consideration Abstract ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract
862 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
863 Analysis of the cash flow of the acquisition Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
864 Consideration paid (received) Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
865 Net cash acquired Concept (Monetary) For Period Debit ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
866 Outflow cash, net Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
867 040601 - Disclosure - INTANGIBLE ASSETS - BREAKDOWN (Details) Network

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*

 http://www.Atento.com/role/INTANGIBLEASSETSBREAKDOWNDetails
868 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
869 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
870 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
871 Development Member ifrs-full:CapitalisedDevelopmentExpenditureMember
872 Customer base Member ifrs-full:CustomerrelatedIntangibleAssetsMember
873 Software Member ifrs-full:ComputerSoftwareMember
874 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
875 Work in progress Member ifrs-full:IntangibleAssetsUnderDevelopmentMember
876 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
877 Carrying amount [member] Member ifrs-full:CarryingAmountMember
878 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
879 Accumulated depreciation, amortisation and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
880 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
881 Accumulated impairment [member] Member ifrs-full:AccumulatedImpairmentMember
882 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
883 Intangible assets other than goodwill Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
884 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
885 Acquisitions from business combination Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
886 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
887 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesIntangibleAssetsOtherThanGoodwill
888 Translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
889 Revaluation Increase Decrease Intangible Assets Other Than Goodwill Concept (Monetary) For Period Debit ifrs-full:RevaluationIncreaseDecreaseIntangibleAssetsOtherThanGoodwill
890 Intangible assets other than goodwill Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
891 040602 - Disclosure - INTANGIBLE ASSETS - CUSTOMER BASE (Details) Network

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 http://www.Atento.com/role/INTANGIBLEASSETSCUSTOMERBASEDetails
892 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
893 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
894 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
895 Capitalised development expenditure [member] Member ifrs-full:CapitalisedDevelopmentExpenditureMember
896 Customer-related intangible assets [member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
897 Computer software [member] Member ifrs-full:ComputerSoftwareMember
898 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
899 Intangible assets under development [member] Member ifrs-full:IntangibleAssetsUnderDevelopmentMember
900 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
901 Carrying amount [member] Member ifrs-full:CarryingAmountMember
902 Accumulated depreciation, amortisation and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
903 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
904 Accumulated impairment [member] Member ifrs-full:AccumulatedImpairmentMember
905 Major customers [axis] Axis ifrs-full:MajorCustomersAxis
906 Customers [member] Member ifrs-full:MajorCustomersMember
907 Telefonica S.A. [member] Member atto:TelefonicaSaMember
908 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
909 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
910 BRAZIL [Member] Member country:BR
911 SPAIN [Member] Member country:ES
912 MEXICO [Member] Member country:MX
913 PERU [Member] Member country:PE
914 COLOMBIA [Member] Member country:CO
915 CHILE [Member] Member country:CL
916 ARGENTINA [Member] Member country:AR
917 URUGUAY [member] Member country:UY
918 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
919 Intangible assets other than goodwill Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
920 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
921 Acquisitions from business combination Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
922 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
923 Translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
924 040701 - Disclosure - GOODWILL - CHANGES IN GOODWILL (Details) Network

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 http://www.Atento.com/role/GOODWILLCHANGESINGOODWILLDetails
925 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
926 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
927 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
928 PERU [Member] Member country:PE
929 CHILE [Member] Member country:CL
930 COLOMBIA [Member] Member country:CO
931 CZECH REPUBLIC [Member] Member country:CZ
932 MEXICO [Member] Member country:MX
933 SPAIN [Member] Member country:ES
934 BRAZIL [Member] Member country:BR
935 ARGENTINA [Member] Member country:AR
936 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
937 Goodwill Period Start Concept (Monetary) As Of Debit ifrs-full:Goodwill
938 Increase (decrease) through other changes, goodwill Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesGoodwill
939 Increase (decrease) through net exchange differences, goodwill Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
940 Additional recognition, goodwill Concept (Monetary) For Period Debit ifrs-full:AdditionalRecognitionGoodwill
941 Goodwill Period End Concept (Monetary) As Of Debit ifrs-full:Goodwill
942 040702 - Disclosure - GOODWILL - SUBSIDIARIES (Details) Network

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*

 http://www.Atento.com/role/GOODWILLSUBSIDIARIESDetails
943 Disclosure of subsidiaries [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
944 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
945 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
946 Atento Brasil S.A. [member] Member atto:AtentoBrasilSAMember
947 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
948 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
949 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
950 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
951 Increase (decrease) through other changes, goodwill Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesGoodwill
952 040801 - Disclosure - IMPAIRMENT OF ASSETS - DISCOUNT AND GROWTH RATES (Details) Network

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 http://www.Atento.com/role/IMPAIRMENTOFASSETSDISCOUNTANDGROWTHRATESDetails
953 Disclosure of information for cash-generating units [table] Table

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*

 ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable
954 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
955 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
956 BRAZIL [Member] Member country:BR
957 MEXICO [Member] Member country:MX
958 SPAIN [Member] Member country:ES
959 COLOMBIA [Member] Member country:CO
960 PERU [Member] Member country:PE
961 CHILE [Member] Member country:CL
962 ARGENTINA [Member] Member country:AR
963 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
964 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
965 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
966 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
967 Atento Brasil S.A. [member] Member atto:AtentoBrasilSAMember
968 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
969 Discount rate applied to cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
970 Growth rate used to extrapolate cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
971 Recoverable amounts Concept (Monetary) As Of Debit ifrs-full:RecoverableAmountOfAssetOrCashgeneratingUnit
972 040802 - Disclosure - IMPAIRMENT OF ASSETS - INTANGIBLE ASSETS (Details) Network

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*

 http://www.Atento.com/role/IMPAIRMENTOFASSETSINTANGIBLEASSETSDetails
973 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
974 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
975 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
976 Telefonica S.A. [member] Member atto:TelefonicaSaMember
977 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
978 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
979 Customer-related intangible assets [member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
980 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
981 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
982 CZECH REPUBLIC [Member] Member country:CZ
983 SPAIN [Member] Member country:ES
984 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
985 Other gains (losses) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
986 Impairment loss recognised in profit or loss, intangible assets other than goodwill Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
987 Impairment loss recognised in profit or loss, goodwill Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
988 Description of key assumptions on which management has based cash flow projections Concept (Text/String) For Period ifrs-full:DescriptionOfKeyAssumptionsOnWhichManagementHasBasedCashFlowProjections
989 040901 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (PP&E) (Details) Network

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*

 http://www.Atento.com/role/PROPERTYPLANTANDEQUIPMENTPPEDetails
990 Disclosure of detailed information about property, plant and equipment [table] Table

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*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
991 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
992 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
993 Land and natural resources Member ifrs-full:LandMember
994 Buildings [member] Member ifrs-full:BuildingsMember
995 Plant and machinery [member] Member atto:PlantAndMachineryMember
996 Furniture, tools and other tangible assets Member ifrs-full:FixturesAndFittingsMember
997 PP&E under construction Member ifrs-full:ConstructionInProgressMember
998 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
999 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1000 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
1001 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1002 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1003 Property, plant and equipment Period Start Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1004 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1005 Acquisition of new entities Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
1006 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
1007 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
1008 Translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
1009 Property, plant and equipment Period End Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1010 040902 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (PP&E) - ADDITIONS (Details) Network

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 http://www.Atento.com/role/PROPERTYPLANTANDEQUIPMENTPPEADDITIONSDetails
1011 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1012 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1013 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
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1015 MEXICO [Member] Member country:MX
1016 BRAZIL [Member] Member country:BR
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1018 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1019 Fixtures and fittings [member] Member ifrs-full:FixturesAndFittingsMember
1020 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1021 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1022 Additions other than through business combinations, property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1023 041001 - Disclosure - LEASES AND SIMILAR ARRANGEMENTS - FINANCE LEASES (Details) Network

*

*

 http://www.Atento.com/role/LEASESANDSIMILARARRANGEMENTSFINANCELEASESDetails
1024 Disclosure of recognised finance lease as assets by lessee [table] Table

*

*

 ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable
1025 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1026 ClassesOfAssetsMember Member ifrs-full:ClassesOfAssetsMember
1027 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1028 Plant and machinery [member] Member atto:PlantAndMachineryMember
1029 Machinery [member] Member ifrs-full:MachineryMember
1030 Buildings [member] Member ifrs-full:BuildingsMember
1031 Fixtures and fittings [member] Member ifrs-full:FixturesAndFittingsMember
1032 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1033 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1034 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
1035 Software Member ifrs-full:ComputerSoftwareMember
1036 Disclosure of recognised finance lease as assets by lessee [line items] LineItems ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems
1037 Recognised finance lease as assets Concept (Monetary) As Of Debit ifrs-full:RecognisedFinanceLeaseAsAssets
1038 041002 - Disclosure - LEASES AND SIMILAR ARRANGEMENTS - MATURITY (Details) Network

*

*

 http://www.Atento.com/role/LEASESANDSIMILARARRANGEMENTSMATURITYDetails
1039 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1040 Maturity [axis] Axis ifrs-full:MaturityAxis
1041 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1042 Up to 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1043 Between 1 and 5 years Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1044 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1045 Minimum finance lease payments payable Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayable
1046 041003 - Disclosure - LEASES AND SIMILAR ARRANGEMENTS - ATENTO BRASIL SA (Details) Network

*

*

 http://www.Atento.com/role/LEASESANDSIMILARARRANGEMENTSATENTOBRASILSADetails
1047 Implied Table Table

*

*

 implied:Table
1048 Disclosure of quantitative information about leases for lessee [abstract] Abstract ifrs-full:DisclosureOfQuantitativeInformationAboutLeasesForLesseeAbstract
1049 Information about sale and leaseback transactions Concept (Text/String) For Period ifrs-full:InformationAboutSaleAndLeasebackTransactions
1050 Sale leaseback amount Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
1051 Term of sales leaseback Concept (Monetary) For Period atto:SaleLeasebackTerm
1052 041101 - Disclosure - FINANCIAL ASSETS (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALASSETSDetails
1053 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
1054 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1055 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1056 Fair value through profit or loss Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
1057 Loans and receivables Member ifrs-full:LoansAndReceivablesCategoryMember
1058 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1059 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
1060 Other financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
1061 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
1062 Non-current financial assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssets
1063 Current trade and other receivables excludiaAdvance payments, prepayments and non-financial assets Concept (Monetary) As Of Debit atto:CurrentTradeAndOtherReceivablesExcludingAdvancePaymentsPrepaymentsAndNonfinancialAssets
1064 Other financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
1065 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1066 Current financial assets Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssets
1067 TOTAL FINANCIAL ASSETS Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1068 041201 - Disclosure - OTHER FINANCIAL ASSETS (Details) Network

*

*

 http://www.Atento.com/role/OTHERFINANCIALASSETSDetails
1069 Implied Table Table

*

*

 implied:Table
1070 Miscellaneous assets [abstract] Abstract ifrs-full:MiscellaneousAssetsAbstract
1071 Categories of financial assets [abstract] Abstract ifrs-full:CategoriesOfFinancialAssetsAbstract
1072 Other non-current receivables Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
1073 Non-current guarantees and deposits Concept (Monetary) As Of Debit atto:NoncurrentGuaranteesAndDeposits
1074 Total non-current Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
1075 Other current receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1076 Current guarantees and deposits Concept (Monetary) As Of Debit atto:Currentguaranteesanddeposit
1077 Total current Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
1078 Total Concept (Monetary) As Of Debit ifrs-full:OtherFinancialAssets
1079 Effective annual interest rate other non current receivables Concept (Text/String) For Period atto:EffectiveInterestRateOtherNonCurrentReceivables
1080 Other non-current receivables, maturity period Concept (Text/String) For Period atto:OtherNonCurrentReceivablesMaturityPeriod
1081 041301 - Disclosure - TRADE AND OTHER RECEIVABLES (Details) Network

*

*

 http://www.Atento.com/role/TRADEANDOTHERRECEIVABLESDetails
1082 Implied Table Table

*

*

 implied:Table
1083 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
1084 Non-current trade receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
1085 Other non-financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNonfinancialAssets
1086 Total non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
1087 Current trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1088 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
1089 Prepayments Concept (Monetary) As Of Debit ifrs-full:CurrentPrepayments
1090 Personnel Concept (Monetary) As Of Debit atto:CurrentEmployeeReceivables
1091 Total Current Concept (Monetary) As Of Debit atto:CurrentTradeAndOtherReceivables
1092 Total Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
1093 Trade receivables Concept (Monetary) As Of Debit ifrs-full:TradeReceivables
1094 Impairment allowances Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1095 Trade receivables, net Concept (Monetary) As Of Debit atto:TradeReceivablesNetOfAllowanceForImpairments
1096 041302 - Disclosure - TRADE AND OTHER RECEIVABLES - AGING ANALYSIS (Details) Network

*

*

 http://www.Atento.com/role/TRADEANDOTHERRECEIVABLESAGINGANALYSISDetails
1097 Disclosure of provision matrix [table] Table

*

*

 ifrs-full:DisclosureOfProvisionMatrixTable
1098 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1099 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1100 Trade receivables [member] Member ifrs-full:TradeReceivablesMember
1101 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1102 Past due status [member] Member ifrs-full:PastDueStatusMember
1103 Not Due Member ifrs-full:CurrentMember
1104 Due, Less than 90 days Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
1105 Due, Between 90 and 180 days Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanSixMonthsMember
1106 Due, Betweeen 180 and 360 days Member ifrs-full:LaterThanSixMonthsAndNotLaterThanOneYearMember
1107 Due, Over 360 days Member ifrs-full:LaterThanOneYearMember
1108 Credit impairment of financial instruments [axis] Axis ifrs-full:CreditImpairmentOfFinancialInstrumentsAxis
1109 Credit impairment of financial instruments [member] Member ifrs-full:CreditImpairmentOfFinancialInstrumentsMember
1110 Not impaired receivable Member ifrs-full:FinancialInstrumentsNotCreditimpairedMember
1111 Disclosure of provision matrix [line items] LineItems ifrs-full:DisclosureOfProvisionMatrixLineItems
1112 Trade receivable not yet due or due Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1113 041303 - Disclosure - TRADE AND OTHER RECEIVABLES - MOVEMENTS IN THE PROVISION FOR IMPAIRMENT OF TRADE RECEIVABLES (Details) Network

*

*

 http://www.Atento.com/role/TRADEANDOTHERRECEIVABLESMOVEMENTSINTHEPROVISIONFORIMPAIRMENTOFTRADERECEIVABLESDetails
1114 Implied Table Table

*

*

 implied:Table
1115 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
1116 Opening balance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1117 Allowance Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
1118 Acquisitions from business combination Concept (Monetary) For Period Credit atto:AdditionsThroughBusinessCombinaitonsAllowanceAccountForCreditLossesOfFinancialAssets
1119 Reversal Concept (Monetary) For Period ifrs-full:ReversalAllowanceAccountForCreditLossesOfFinancialAssets
1120 Translation differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
1121 Total Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1122 041401 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details) Network

*

*

 http://www.Atento.com/role/DERIVATIVEFINANCIALINSTRUMENTSDetails
1123 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
1124 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1125 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1126 Interest rate swaps Member ifrs-full:InterestRateSwapContractMember
1127 Cross-currency swaps Member ifrs-full:CurrencySwapContractMember
1128 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1129 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1130 Cashflow hedges Member ifrs-full:CashFlowHedgesMember
1131 Net investment hedges Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
1132 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1133 Assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1134 Liabilities Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
1135 Non-current portion, assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
1136 Non-current portion, liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
1137 Current portion, assets Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
1138 Current portion, liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
1139 Contractual amounts to be exchanged Concept (Monetary) As Of Credit ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged
1140 Variable rate Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1141 Number of derivative contracts Concept (Integer) For Period atto:NumberOfDerivativeContracts
1142 Number of derivative contracts terminated Concept (Integer) For Period atto:NumberOfDerivativeContractsTerminated
1143 Termination period of derivative contracts Concept (Text/String) For Period atto:Terminationperiodofderivativecontracts
1144 Proceeds from termination of contracts designated as investment hedges Concept (Monetary) For Period Debit atto:ProceedsFromTerminationOfContractsDesignatedAsInvestmentHedges
1145 Hedged loan, USD Concept (Monetary) As Of Credit ifrs-full:HedgedItemLiabilities
1146 Fixed rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1147 041402 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - CASH FLOW HEDGE AND NET INVESTMENT HEDGES (Details) Network

*

*

 http://www.Atento.com/role/DERIVATIVEFINANCIALINSTRUMENTSCASHFLOWHEDGEANDNETINVESTMENTHEDGESDetails
1148 Disclosure of detailed information about hedges [table] Table

*

*

 ifrs-full:DisclosureOfHedgeAccountingTable
1149 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1150 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1151 Cashflow hedges Member ifrs-full:CashFlowHedgesMember
1152 Net investment hedges Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
1153 Swap Bank [Axis] Axis atto:SwapBankAxis
1154 Names Of Swap Bank [Domain] Member atto:NamesOfSwapBankDomain
1155 Itau Bank [member] Member atto:ItauBankMember
1156 Santander Bank [member] Member atto:SantanderBankMember
1157 Goldman Sachs Bank [member] Member atto:GoldmanSachsBankMember
1158 ABC Brasil SA [member] Member atto:ABCBrasilSAMember
1159 Nomura International Bank [member] Member atto:NomuraInternationalBankMember
1160 BBVA Bank [member] Member atto:BBVABankMember
1161 Currency [Axis] Axis atto:CurrencyAxis
1162 All Currencies [Domain] Member currency:AllCurrenciesDomain
1163 MXN, selling currency Member currency:MXN
1164 EUR, selling currency Member currency:EUR
1165 PEN, selling currency Member currency:PEN
1166 COP, selling currency Member currency:COP
1167 BRL, selling currency Member currency:BRL
1168 USD, Selling currency Member currency:USD
1169 MXN-USD [Member] Member atto:MXNUSDMember
1170 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1171 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1172 Interest rate swaps Member ifrs-full:InterestRateSwapContractMember
1173 Currency Swap Contract - do not qualify for hedge accounting [Member] Member atto:CurrencyswapcontracdonotqualifyforhedgeaccountingmemberMember
1174 Disclosure of detailed information about hedges [line items] LineItems ifrs-full:DisclosureOfHedgeAccountingLineItems
1175 Maturity Date of Swap Contracts Concept (Date) For Period atto:MaturityDateOfSwapContracts
1176 Notional or Purchase currency Concept (Text/String) For Period atto:NotionalOrPurchaseCurrency
1177 Index Concept (Text/String) For Period ifrs-full:IdentityOfPriceIndex
1178 Notional in contract currency Concept (Monetary) As Of ifrs-full:NotionalAmount
1179 Fair value assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1180 Fair value liability Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
1181 Other comprehensive income, net of taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxChangeInValueOfForwardElementsOfForwardContracts
1182 Change in OCI Concept (Monetary) For Period Credit atto:OtherComprehensiveIncomeNetOfTaxCashFlowHedgesAndHedgesOfNetInvestmentsInForeignOperations
1183 Income statement Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnChangeInValueOfForwardElementsOfForwardContractsNetOfTax
1184 Statements of operations - Finance cost Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1185 Change in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
1186 041501 - Disclosure - CASH AND CASH EQUIVALENTS (Details) Network

*

*

 http://www.Atento.com/role/CASHANDCASHEQUIVALENTSDetails
1187 Implied Table Table

*

*

 implied:Table
1188 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1189 Deposits held at call Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
1190 Short-term financial investments Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
1191 Total Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1192 041601 - Disclosure - FINANCIAL LIABILITIES (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALLIABILITIESDetails
1193 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1194 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1195 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1196 Fair value through profit or loss Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1197 Other financial liabilities at amortized cost Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
1198 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1199 Equity [member] Member ifrs-full:EquityMember
1200 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
1201 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1202 Debentures and bonds Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued
1203 Interest-bearing debt Concept (Monetary) As Of Credit atto:NoncurrentInterestBearingBorrowings
1204 Finance lease payables Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinanceLeaseLiabilities
1205 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
1206 CVIs Concept (Monetary) As Of Credit atto:ContingentValueInstruments
1207 Option for acquisition of NCI Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesRecognisedAsOfAcquisitionDate
1208 Trade and other payables Concept (Monetary) As Of Credit atto:NoncurrentPayablesExcludingDeferredIncomeAndNonfinancialLiabilities
1209 Non-current financial liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinancialLiabilities
1210 Debentures and bonds Concept (Monetary) As Of Credit ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued
1211 Interest-bearing debt Concept (Monetary) As Of Credit atto:CurrentInterstBearingBorrowings
1212 Finance lease payables Concept (Monetary) As Of Credit ifrs-full:CurrentFinanceLeaseLiabilities
1213 Trade and other payables Concept (Monetary) As Of Credit atto:TradeAndOtherCurrentPayablesExcludingDeferredIncomeAndNonfinancialLiabilities
1214 Current financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
1215 TOTAL FINANCIAL LIABILITIES Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1216 041602 - Disclosure - FINANCIAL LIABILITIES - PAYMENTS SCHEDULE (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALLIABILITIESPAYMENTSSCHEDULEDetails
1217 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable
1218 Maturity [axis] Axis ifrs-full:MaturityAxis
1219 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1220 Year 1 Member ifrs-full:NotLaterThanOneYearMember
1221 Year 2 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1222 Year 3 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1223 Year 4 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1224 Year 5 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1225 More than 5 years Member ifrs-full:LaterThanFiveYearsMember
1226 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1227 Senior Secured Notes Concept (Monetary) As Of Credit atto:SeniorSecuredNotesUndiscountedCashFlows
1228 Brazilian bonds-Debentures Concept (Monetary) As Of Credit ifrs-full:BondsIssuedUndiscountedCashFlows
1229 Finance leases Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
1230 Bank borrowings, undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1231 CVIs Concept (Monetary) As Of Credit atto:ContingentValueInstruments
1232 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
1233 Total financial liabilities Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
1234 041603 - Disclosure - FINANCIAL LIABILITIES - REPAYMENTS SCHEDULE (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALLIABILITIESREPAYMENTSSCHEDULEDetails
1235 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable
1236 Maturity [axis] Axis ifrs-full:MaturityAxis
1237 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1238 2014 [Member] Member atto:YearTwoThousandAndFourteenMember
1239 2015 [Member] Member atto:YearTwoThousandAndFifteenMember
1240 2016 Member ifrs-full:NotLaterThanOneYearMember
1241 2017 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1242 2018 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1243 2019 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1244 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1245 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1246 Brazilian Subsidiary Member atto:BrazilianSubsidiaryMember
1247 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1248 Perecentage of repayment of debentures, per original schedule Concept (Percent) For Period atto:PercentageOfRepaymentDebenturesOriginalSchedule
1249 Perecentage of repayment of debentures, per new schedule Concept (Percent) For Period atto:PercentageOfRepaymentDebenturesNewSchedule
1250 Debentures Concept (Monetary) As Of Credit ifrs-full:NotesAndDebenturesIssued
1251 Early repayment of debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
1252 041701 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESDetails
1253 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1254 Types of financial liabilities [axis] Axis ifrs-full:TypesOfFinancialLiabilitiesAxis
1255 Financial liabilities, type [member] Member ifrs-full:FinancialLiabilitiesTypeMember
1256 Third parties debt [member] Member atto:ThirdPartiesDebtMember
1257 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1258 Senior Secured Notes Concept (Monetary) As Of Credit atto:NoncurrentSeniorSecuredNotes
1259 Brazilian bonds-Debentures Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued
1260 Bank borrowing Concept (Monetary) As Of Credit ifrs-full:UnsecuredBankLoansReceived
1261 CVIs Concept (Monetary) As Of Credit atto:ContingentValueInstruments
1262 Finance lease payables Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
1263 Total non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinancialLiabilities
1264 Senior Secured Notes Concept (Monetary) As Of Credit atto:CurrentSeniorSecuredNotes
1265 Brazilian bonds-Debentures Concept (Monetary) As Of Credit ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued
1266 Bank borrowing Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1267 Finance lease payables Concept (Monetary) As Of Credit ifrs-full:CurrentFinanceLeaseLiabilities
1268 Total current Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
1269 TOTAL DEBT WITH THIRD PARTIES Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1270 041702 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - MOVEMENT OF DEBT (Details) Network

*

*

 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESMOVEMENTOFDEBTDetails
1271 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1272 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1273 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1274 Senior Secured Notes Member atto:SeniorSecuredNotesMember
1275 Brazilian bonds - Debentures Member atto:BrazilianBondsDebenturesMember
1276 Contingent Value Instrument [member] Member atto:ContingentValueInstrumentMember
1277 Finance lease payables Member atto:FinanceLeasePayablesMember
1278 Other borrowings Member atto:OtherborrowingsmemberMember
1279 Types of financial liabilities [axis] Axis ifrs-full:TypesOfFinancialLiabilitiesAxis
1280 Financial liabilities, type [member] Member ifrs-full:FinancialLiabilitiesTypeMember
1281 Third parties debt [member] Member atto:ThirdPartiesDebtMember
1282 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1283 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1284 New borrowing Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInLiabilitiesArisingFromFinancingActivities
1285 Amortization Concept (Monetary) For Period Credit atto:AmortisationOfLiaibilties
1286 Change in present value Concept (Monetary) For Period Credit atto:IncreaseDecreaseInLiabilitiesArisingFromChangeInPresentValue
1287 Interest accrued Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
1288 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
1289 Foreign exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1290 Amortization (addition) fees Concept (Monetary) For Period Debit atto:BorrowingCostsIncurredOrRecognisedAsExpense
1291 Reversal of principal amount Concept (Monetary) For Period Debit atto:ReversalOfPrincipalAmountOfDebtInstrument
1292 Reversal of finance costs Concept (Monetary) For Period Credit atto:ReversalOfFinanceCosts
1293 Reversal of foreign exchange gains Concept (Monetary) For Period Debit atto:ReversalOfForeignExchangeGains
1294 Translation differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1295 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1296 041703 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - SENIOR SECURED NOTES, DEBENTURES (Details) Network

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1297 Disclosure of detailed information about borrowings [table] Table

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1298 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1299 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1300 Senior Secured Notes Member atto:SeniorSecuredNotesMember
1301 Brazilian bonds - Debentures Member atto:BrazilianBondsDebenturesMember
1302 Maturity [axis] Axis ifrs-full:MaturityAxis
1303 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1304 Time period band up to January 29 2016 Member atto:TimePeriodBandLessThanOrEqualToJanuary292016Member
1305 Time period band 12 month period until Jan 29 2016 Member atto:TimePeriodBandTwelveMonthsJanuary292016Member
1306 2016 Member ifrs-full:NotLaterThanOneYearMember
1307 2017 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1308 2018 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1309 Year 2019 and after Member atto:LaterThanFourYearsMember
1310 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1311 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1312 Atento Luxco 1, S.A. [member] Member atto:AtentoLuxcoOneSaMember
1313 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1314 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1315 Level 1 member Member ifrs-full:Level1OfFairValueHierarchyMember
1316 Valuation techniques used in fair value measurement [axis] Axis ifrs-full:ValuationTechniquesUsedInFairValueMeasurementAxis
1317 Valuation techniques [member] Member ifrs-full:ValuationTechniquesMember
1318 Discounted cash flow Member ifrs-full:DiscountedCashFlowMember
1319 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1320 Number of bonds Concept (Decimal) As Of atto:NumberOfBonds
1321 Nominal value per bond Concept (Decimal) As Of atto:NominalValuePerBond
1322 Stated interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1323 Redemption price of bond in percentage Concept (Percent) As Of atto:RedemptionPriceOfBondPercentage
1324 Redemption price with applicable premium Concept (Percent) As Of atto:RedemptionPriceWithApplicablePremioumOfBondPercentage
1325 Percentage of the principal amount of the notes Concept (Percent) As Of atto:PercentageOfPrincipalAmountOfNotes
1326 Early redemption amount Concept (Monetary) For Period Credit atto:AmountOfBondsRedeemedEarly
1327 Inception date of borrowing Concept (Text/String) For Period atto:DateOfInceptionOfBorrowing
1328 Maturity Date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1329 Financial liabilities, at fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
1330 Borrowings, original currency Concept (Text/String) For Period ifrs-full:BorrowingsOriginalCurrency
1331 Principal Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
1332 Interest accrued Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
1333 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
1334 Debenture and bond, value Concept (Monetary) As Of Credit ifrs-full:BondsIssued
1335 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1336 Borrowings, interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1337 Repayment of bonds and debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
1338 041704 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - BANK BORROWING (Details) Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESBANKBORROWINGDetails
1339 Disclosure of detailed information about borrowings [table] Table

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*

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1340 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1341 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1342 Foreign currency debt [Member] Member atto:ForeignCurrencyDebtMember
1343 U.S. Dollars debt [member] Member atto:USDollarsDebtMember
1344 Credit Facility [member] Member atto:CreditFacilityMember
1345 Tranche A [member] Member atto:TrancheAMember
1346 Tranche B [member] Member atto:TrancheBMember
1347 Tranche C [member] Member atto:TrancheCMember
1348 Tranche D [member] Member atto:TrancheDMember
1349 Tranche E [member] Member atto:TrancheEMember
1350 Currency [Axis] Axis atto:CurrencyAxis
1351 All Currencies [Domain] Member currency:AllCurrenciesDomain
1352 Brazil Real [Member] Member currency:BRL
1353 Morocco, Dirhams [Member] Member currency:MAD
1354 Credit Facility Release Date [Axis] Axis atto:CreditfacilityreleasedateaxisAxis
1355 Credit Facility Release Date [Domain] Member atto:CreditFacilityReleaseDateDomain
1356 March 27, 2014 Member atto:MarchTwentySevenTwoThousandFourteenMember
1357 April 16, 2014 Member atto:AprilSixteenTwoThousandFourteenMember
1358 July 16, 2014 Member atto:JulySixteenTwoThousandFourteenMember
1359 August 13, 2014 Member atto:AugustThirteenTwoThousandFourteenMember
1360 Subtotal 2014 Member atto:TwoThousandFourteenMember
1361 March 26, 2015 Member atto:MarchTwentySixTwoThousandFifteenMember
1362 April 17, 2015 Member atto:AprilSeventeenTwoThousandFifteenMember
1363 December 21, 2015 Member atto:DecemberTwentyOneTwoThousandFifteenMember
1364 Subtotal 2015 Member atto:TwoThousandFifteenMember
1365 October 27, 2016 Member atto:OctoberTwentySevenTwoThousandSixteenMember
1366 Subtotal 2016 Member atto:TwoThousandSixteenMember
1367 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1368 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1369 Fair value of debt Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
1370 Aggregate principal amount Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
1371 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1372 Borrowing ineterest rate spread Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1373 041705 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - BANK BORROWING AND CVI NARRATIVE (Details) Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESBANKBORROWINGANDCVINARRATIVEDetails
1374 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1375 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1376 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1377 Credit Facility [member] Member atto:CreditFacilityMember
1378 New credit agreement with BNDES [member] Member atto:NewCreditAgreementWithBNDESMember
1379 Super senior revovling credit facility [member] Member atto:SuperSeniorRevovlingCreditFacilityMember
1380 CVI, senior obligations [member] Member atto:CVISeniorObligationsMember
1381 BNDES Credit Facility [Member] Member atto:BNDESCreditFacilityMember
1382 2017 Santander Bank Credit Certificate [Member] Member atto:SantanderBankCreditCertificate2017Member
1383 Common Revolving Credit Facility Line [Member] Member atto:CommonRevolvingCreditFacilityLineMember
1384 Banco ABC Brasil [Member] Member atto:BancoABCBrasilMember
1385 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1386 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1387 Argentinian subsidiary [Member] Member atto:ArgentinianSubsidiaryMember
1388 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1389 Undrawn credit facility Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1390 Borrowing ineterest rate spread Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1391 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1392 Term of the credit faicility Concept (Decimal) For Period atto:CreditFacilityTermInMonths
1393 First payment due date Concept (Date) For Period atto:DebtInstrumentDateOfFirstRequiredPayment
1394 Last payment due date Concept (Date) For Period atto:DebtInstrumentDateOfLastRequiredPayment
1395 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1396 Excess cash as a percentage of total cash available Concept (Percent) As Of atto:ExcessCashAsAPercentageOfTotalCashAvailable
1397 Other gains related to principle amount Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
1398 Reversal of finance costs Concept (Monetary) For Period Credit atto:ReversalOfFinanceCosts
1399 Foreign exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1400 041706 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - SENIOR SECURED NOTES (Details) Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESSENIORSECUREDNOTESDetails
1401 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1402 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1403 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1404 Senior Secured Notes 2020 [Member] Member atto:SeniorSecuredNotes2020Member
1405 Senior secured notes 2022 [Member] Member atto:SeniorSecuredNotes2022Member
1406 Debentures due 2019 [Member] Member atto:DebenturesDue2019Member
1407 Debentures due 2025 [Member] Member atto:DebenturesDue2025Member
1408 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1409 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1410 Atento Luxco 1, S.A. [member] Member atto:AtentoLuxcoOneSaMember
1411 Atento Brasil S.A. [member] Member atto:AtentoBrasilSAMember
1412 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1413 Senior Secured Notes, undiscounted cash flows Concept (Monetary) As Of Credit atto:SeniorSecuredNotesUndiscountedCashFlows
1414 Maturity Date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1415 Premium Over Face Value Of Secured Notes Percentage Concept (Percent) As Of atto:PremiumOverFaceValueOfSecuredNotesPercentage
1416 Total call cost Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnDebtInstruments
1417 Debt Instrument Issuance Costs Concept (Monetary) For Period Debit atto:DebtInstrumentIssuanceCosts
1418 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1419 Repayment of bonds and debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
1420 041707 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - DEBENTURES (Details) Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESDEBENTURESDetails
1421 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1422 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1423 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1424 1st Brazilian Debentures due 2019 Member atto:FirstBrazilianDebenturesDue2019Member
1425 Brazilian Debentures due 2023 [Member] Member atto:BrazilianDebenturesDue2023Member
1426 Maturity [axis] Axis ifrs-full:MaturityAxis
1427 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1428 April 25, 2018 Member atto:AprilTwentyFiveTwoThousandEighteenMember
1429 October 25, 2018 Member atto:OctoberTwentyFiveTwoThousandEighteenMember
1430 April 25, 2019 Member atto:ApriltwentyfivetwothousandnineteenmemberMember
1431 October 25, 2019 Member atto:OctobertwentyfivetwothousandnineteenmemberMember
1432 April 25, 2020 Member atto:ApriltwentyfivetwothousandtwentymemberMember
1433 October 25, 2020 Member atto:OctobertwentyfivetwothousandtwentymemberMember
1434 April 25, 2021 Member atto:ApriltwentyfivetwothousandtwentyonememberMember
1435 October 25, 2021 Member atto:OctobertwentyfivetwothousandtwentyonememberMember
1436 April 25, 2022 Member atto:ApriltwentyfivetwothousandtwentytwomemberMember
1437 October 25, 2022 Member atto:OctobertwentyfivetwothousandtwentytwomemberMember
1438 April 25, 2023 Member atto:AprilTwentyFiveTwoThousandTwentyThreeMember
1439 October 25, 2023 Member atto:OctoberTwentyFiveTwoThousandTwnetyThreeMember
1440 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1441 Repayment of bonds and debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
1442 Accrued interest Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBonds
1443 Penalty Fee Bonds Debentures Concept (Monetary) For Period Debit atto:PenaltyFeeBondsDebentures
1444 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1445 Brazilian bonds-Debentures Concept (Monetary) As Of Credit ifrs-full:BondsIssuedUndiscountedCashFlows
1446 Interest rate spread Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1447 Amortization of interest cost Concept (Percent) For Period atto:AmortisationOfInterestCost
1448 041708 - Disclosure - FINANCIAL DEBT WITH THIRD PARTIES - BANK BORROWING ATENTO BRASIL SA (Details) Network

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 http://www.Atento.com/role/FINANCIALDEBTWITHTHIRDPARTIESBANKBORROWINGATENTOBRASILSADetails
1449 Disclosure of detailed information about borrowings [table] Table

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1450 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1451 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1452 2017 Santander Bank Certificate Member atto:TwoThousandSeventeenSantanderBankCertificateMember
1453 Banco ABC Brasil [Member] Member atto:BancoABCBrasilMember
1454 2017 Bradesco Bank Credit Certificate Member atto:TwoThousandSeventeenBradescoBankCreditCertificateMember
1455 Super Senior Revolving Credit Facility [Member] Member atto:SuperSeniorRevolvingCreditFacilityMember
1456 BNDES Credit Facility [Member] Member atto:BNDESCreditFacilityMember
1457 Common Revolving Credit Facility Line [Member] Member atto:CommonRevolvingCreditFacilityLineMember
1458 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1459 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1460 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
1461 Range [axis] Axis ifrs-full:RangeAxis
1462 Ranges [member] Member ifrs-full:RangesMember
1463 Minimum [member] Member ifrs-full:BottomOfRangeMember
1464 Maximum [member] Member ifrs-full:TopOfRangeMember
1465 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1466 Undrawn borrowing facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1467 Borrowings, interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1468 Borrowings maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1469 Extended Borrowings Maturity Concept (Text/String) For Period atto:Extendedborrowingsmaturity
1470 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1471 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1472 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1473 Borrowing terms Concept (Text/String) For Period atto:DescriptionOfBorrowingsCoventant
1474 Ratio of consolidated drawn facilities to proforma EBITDA Concept (Percent) For Period atto:RatioConsolidatedDrawnFacilitiesToProformaEbitda
1475 Percentage Of Credit Facility Drawn Concept (Percent) For Period atto:PercentageOfCreditFacilityDrawn
1476 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1477 Threshold Amount For Spread Rate Concept (Monetary) As Of atto:ThresholdAmountForSpreadRate
1478 Debt To Pro Forma EBITDA Concept (Decimal) As Of atto:DebtToProFormaEBITDA
1479 Threshold Percentage Of Draw Concept (Percent) As Of atto:ThresholdPercentageOfDraw
1480 041801 - Disclosure - TRADE AND OTHER NON TRADE PAYABLES (Details) Network

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 http://www.Atento.com/role/TRADEANDOTHERNONTRADEPAYABLESDetails
1481 Implied Table Table

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 implied:Table
1482 Trade and other payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
1483 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentPayables
1484 Suppliers Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayablesToTradeSuppliers
1485 Total non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
1486 Suppliers Concept (Monetary) As Of Credit atto:CurrentPayablesToTradeSuppliers
1487 Advances Concept (Monetary) As Of Credit ifrs-full:CurrentAdvances
1488 Total current trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
1489 Suppliers of fixed assets Concept (Monetary) As Of Credit atto:CurrentTradePayableRelatedToPropertyPlantAndEquipment
1490 Personnel Concept (Monetary) As Of Credit atto:CurrentPayableToEmployees
1491 Other Payables Concept (Monetary) As Of Credit ifrs-full:OtherPayables
1492 Current deposits from customers Concept (Monetary) As Of Credit ifrs-full:CurrentDepositsFromCustomers
1493 Total current other non-trade payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
1494 Total Current Concept (Monetary) As Of Credit atto:TotalCurrentPayables
1495 Total Concept (Monetary) As Of Credit atto:TotalCurrentNoncurrentPayables
1496 041901 - Disclosure - EQUITY - SHARE CAPITAL (Details) Network

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 http://www.Atento.com/role/EQUITYSHARECAPITALDetails
1497 Statement of changes in equity [table] Table

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1498 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1499 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1500 Atento SA Shares [member] Member atto:AtentoSAShareMember
1501 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1502 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1503 Rbrasil acquisition [member] Member atto:RbrasilAcquisitionMember
1504 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1505 Entitys total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1506 Parent [Member] Member ifrs-full:ParentMember
1507 PikCo [Member] Member atto:PikcoMember
1508 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
1509 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1510 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1511 Percentage ownership shares Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInSubsidiary
1512 Shares authorized Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
1513 Shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1514 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1515 Acquisition of non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
1516 Percentage of yearly profits Concept (Percent) As Of atto:PercentageOfYearlyProfits
1517 Legal reserve as a percentage of share capital Concept (Percent) As Of atto:LegalReserveAsPercentageOfShareCapital
1518 Cash dividend Concept (Monetary) As Of Credit ifrs-full:DividendPayables
1519 Dividends declared per share Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
1520 041903 - Disclosure - EQUITY - MEASUREMENT OF FAIR VALUE (Details) Network

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 http://www.Atento.com/role/EQUITYMEASUREMENTOFFAIRVALUEDetails
1521 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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1522 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1523 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1524 Time Restricted Stock Units ("RSU") (equity settled) Member atto:TimeRestrictedStockUnitsMember
1525 Extraordinary Time Restricted Stock Units ("RSU") (equity settled) Member atto:ExtraordinaryTimeRestrictedStockUnitsMember
1526 Performance RSU (equity settled) Member atto:PerformanceRestrictedStockUnitsMember
1527 Plan Name [Axis] Axis atto:PlanNameAxis
1528 Plan Name [Member] Member atto:PlanNameDomain
1529 2014 plan [member] Member atto:TwoThousandFourteenPlanMember
1530 2016 plan [member] Member atto:TwoThousandSixteenPlanMember
1531 2017 plan [member] Member atto:TwoThousandSeventeenPlanMember
1532 2018 plan [Member] Member atto:TwoThousandEighteenPlanMember
1533 Vesting [Axis] Axis atto:VestingAxis
1534 Vesting [member] Member atto:VestingDomain
1535 TSR Tranche 1 [member] Member atto:TSRTrancheOneMember
1536 TSR Tranche 2 [member] Member atto:TSRTrancheTwoMember
1537 Adjusted EBITDA Tranche [member] Member atto:AdjustedEbitdaTrancheMember
1538 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1539 Stock price (USD) Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
1540 Strike price (USD) Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1541 Time (years) Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1542 Risk free rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1543 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1544 Dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1545 Value RSU in USD Concept (Monetary) For Period atto:ValueRSU
1546 Percentage of shares vested Concept (Percent) As Of atto:PercentageOfShareOptionsVestedInSharebasedPaymentArrangements
1547 Compound annual growth rate Concept (Percent) For Period atto:CompoundAnnualGrowthRate
1548 Baseline price for measuring the TSR compound annual growth Concept (Decimal) For Period atto:BaselinePriceForMeasuringCompoundAnnualGrowth
1549 041904 - Disclosure - EQUITY - OUTSTANDING RSUS (Details) Network

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 http://www.Atento.com/role/EQUITYOUTSTANDINGRSUSDetails
1550 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1551 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1552 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1553 Time Restricted Stock Units ("RSU") (equity settled) Member atto:TimeRestrictedStockUnitsMember
1554 Extraordinary Time Restricted Stock Units ("RSU") (equity settled) Member atto:ExtraordinaryTimeRestrictedStockUnitsMember
1555 Performance RSU (equity settled) Member atto:PerformanceRestrictedStockUnitsMember
1556 Plan Name [Axis] Axis atto:PlanNameAxis
1557 Plan Name [Member] Member atto:PlanNameDomain
1558 2014 plan [member] Member atto:TwoThousandFourteenPlanMember
1559 2016 plan [member] Member atto:TwoThousandSixteenPlanMember
1560 2016 Extraordinary Plan Member atto:TwoThousandSixteenExtraordinaryPlanMember
1561 2016 Grant Member atto:TwoThousandsSixiteenGrantMember
1562 2016 Extraordinary Grant Member atto:TwothousandssixiteenextraordinarygrantmemberMember
1563 2017 plan [member] Member atto:TwoThousandSeventeenPlanMember
1564 2018 plan [Member] Member atto:TwoThousandEighteenPlanMember
1565 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1566 Number of units outstanding Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1567 Performance based vesting conditions Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
1568 The weighted average price of RSUs granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1569 Forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1570 Vested Concept (Decimal) For Period atto:NumberOfShareOptionsVestedInSharebasedPaymentArrangement
1571 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1572 Reversal of stock based compensation accrual Concept (Monetary) For Period Credit atto:OtherProvisionsSharebasedCompensation
1573 Stock based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1574 Treasury Stock Shares Acquired Concept (Decimal) As Of atto:Treasurystocksharesacquired
1575 Purchase Of Treasury Shares Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
1576 Treasury Stock Acquired Average Cost Per Share Concept (Monetary) As Of atto:TreasuryStockAcquiredAverageCostPerShare
1577 Number Of Other Equity Instruments Exercised Or Vested In Sharebased Payment Arrangement Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1578 Number Of Instruments Other Equity Instruments Granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1579 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod Concept (Decimal) For Period atto:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod
1580 041905 - Disclosure - EQUITY - THE MOVEMENT OF THE RSUS (Details) Network

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 http://www.Atento.com/role/EQUITYTHEMOVEMENTOFTHERSUSDetails
1581 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1582 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1583 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1584 Time Restricted Stock Units ("RSU") (equity settled) Member atto:TimeRestrictedStockUnitsMember
1585 Performance RSU (equity settled) Member atto:PerformanceRestrictedStockUnitsMember
1586 Plan Name [Axis] Axis atto:PlanNameAxis
1587 Plan Name [Member] Member atto:PlanNameDomain
1588 2014 plan [member] Member atto:TwoThousandFourteenPlanMember
1589 2016 plan [member] Member atto:TwoThousandSixteenPlanMember
1590 2016 Extraordinary Plan Member atto:TwoThousandSixteenExtraordinaryPlanMember
1591 2017 plan [member] Member atto:TwoThousandSeventeenPlanMember
1592 2018 plan [Member] Member atto:TwoThousandEighteenPlanMember
1593 Countries [Axis] Axis atto:CountriesAxis
1594 All Countries [Domain] Member country:AllCountriesDomain
1595 ARGENTINA [Member] Member country:AR
1596 BRAZIL [Member] Member country:BR
1597 CHILE [Member] Member country:CL
1598 COLOMBIA [Member] Member country:CO
1599 SPAIN [Member] Member country:ES
1600 FRANCE [Member] Member country:FR
1601 GUATEMALA [Member] Member country:GT
1602 MEXICO [Member] Member country:MX
1603 MOROCCO [Member] Member country:MA
1604 PERU [Member] Member country:PE
1605 UNITED STATES [Member] Member country:US
1606 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1607 Balance, beginning Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1608 Forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1609 Vested Concept (Decimal) For Period atto:NumberOfShareOptionsVestedInSharebasedPaymentArrangement
1610 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1611 Balance, ending Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1612 042000 - Disclosure - TAX MATTERS - INCOME TAX - EXCLUDING DISCONTINUED OPERATIONS (Details) Network

*

*

 http://www.Atento.com/role/TAXMATTERSINCOMETAXEXCLUDINGDISCONTINUEDOPERATIONSDetails
1613 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1614 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1615 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
1616 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
1617 Atento Morocco [member] Member atto:AtentoMoroccoMember
1618 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1619 Reconciliation of average effective tax rate and applicable tax rate [abstract] Abstract ifrs-full:ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract
1620 Profit/(loss) before tax Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1621 Income tax applying the statutory tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1622 Permanent differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1623 Adjustments due to international tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1624 Tax credits Concept (Monetary) For Period Debit atto:TaxEffectFromTaxCredit
1625 Tax Effect From Branches IncomeTax Concept (Monetary) For Period Debit atto:TaxEffectFromBranchesIncomeTax
1626 Change in federal statutory rate in Spain (a) Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
1627 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1628 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1629 Income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1630 Current tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1631 Deferred tax Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1632 Aggregate Effective tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
1633 Pre tax profit, exculding tax effect of impairment Concept (Monetary) For Period Credit atto:PretaxProfitExcludingTaxEffectOfImpairment
1634 Income tax expense, excluding tax effect of impairment Concept (Monetary) For Period Debit atto:IncomeTaxExpenseContinuingOperationsExcludingImpairmentEffects
1635 Aggregate rate excluding group's holding companies Concept (Percent) For Period atto:AverageEffectiveTaxRateExcludingHoldingCompanies
1636 042001 - Disclosure - TAX MATTERS - INCOME TAX (Details) Network

*

*

 http://www.Atento.com/role/TAXMATTERSINCOMETAXDetails
1637 Implied Table Table

*

*

 implied:Table
1638 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1639 Reconciliation of average effective tax rate and applicable tax rate [abstract] Abstract ifrs-full:ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract
1640 Profit/(loss) before tax Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1641 Income tax applying the statutory tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1642 Permanent differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1643 Adjustments due to international tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1644 Tax credits Concept (Monetary) For Period Debit atto:TaxEffectFromTaxCredit
1645 Tax Effect From Branches IncomeTax Concept (Monetary) For Period Debit atto:TaxEffectFromBranchesIncomeTax
1646 Change in federal statutory rate in Spain (a) Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
1647 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1648 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1649 Income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1650 Current tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1651 Deferred tax Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1652 Aggregate Effective tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
1653 Pre tax profit, exculding tax effect of impairment Concept (Monetary) For Period Credit atto:PretaxProfitExcludingTaxEffectOfImpairment
1654 Income tax expense, excluding tax effect of impairment Concept (Monetary) For Period Debit atto:IncomeTaxExpenseContinuingOperationsExcludingImpairmentEffects
1655 Aggregate rate excluding group's holding companies Concept (Percent) For Period atto:AverageEffectiveTaxRateExcludingHoldingCompanies
1656 042002 - Disclosure - TAX MATTERS - DEFERRED TAX ASSETS AND LIABILITIES (Details) Network

*

*

 http://www.Atento.com/role/TAXMATTERSDEFERREDTAXASSETSANDLIABILITIESDetails
1657 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1658 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1659 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1660 Unused tax losses [member] Member ifrs-full:UnusedTaxLossesMember
1661 Unused tax credits [member] Member ifrs-full:UnusedTaxCreditsMember
1662 Temporary differences [member] Member ifrs-full:TemporaryDifferenceMember
1663 Temporary differences Assets [member] Member atto:TemporaryDifferenceAssetMember
1664 Temporary differences Liabilities [member] Member atto:TemporaryDifferenceLiabilityMember
1665 Range [axis] Axis ifrs-full:RangeAxis
1666 Ranges [member] Member ifrs-full:RangesMember
1667 Increase [Member] Member atto:IncrearseMember
1668 Decrease [Member] Member atto:DecreaseMember
1669 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1670 Deferred tax assets, beginning balance Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1671 Deferred tax liabilities, Beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1672 Income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
1673 Equity Concept (Monetary) For Period ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
1674 Transfers Concept (Monetary) For Period atto:IncreaseDecreaseThroughTransfersDeferredTaxLiabilityAsset
1675 Translation difference Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset
1676 Deferred tax assets, ending balance Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1677 Deferred tax liabilities, ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1678 Deferred tax liabilities recognised due to busienss combination Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset
1679 042003 - Disclosure - TAX MATTERS - RECOGNIZED AND UNRECOGNIZED DEFERRED TAX ASSETS AND LIABILITIES (Details) Network

*

*

 http://www.Atento.com/role/TAXMATTERSRECOGNIZEDANDUNRECOGNIZEDDEFERREDTAXASSETSANDLIABILITIESDetails
1680 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1681 Maturity [axis] Axis ifrs-full:MaturityAxis
1682 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1683 Current year [member] Member atto:CurrentYearMember
1684 Year 1 Member ifrs-full:NotLaterThanOneYearMember
1685 Year 2 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1686 Year 3 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1687 Year 4 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1688 Year 5 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1689 Year 6 Member atto:LaterThanFiveYearsAndNotLaterThanSixYearsMember
1690 Subsequent years [member] Member atto:LaterThanSixYearsMember
1691 Subsequent years [member] Member atto:LaterThanSevenYearsMember
1692 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1693 Tax losses Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1694 Deductible temporary differences Concept (Monetary) As Of ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
1695 Tax credits for deductions Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
1696 Total deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1697 Total deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1698 042004 - Disclosure - TAX MATTERS - TAXES RECEIVABLES/PAYABLES (Details) Network

*

*

 http://www.Atento.com/role/TAXMATTERSTAXESRECEIVABLESPAYABLESDetails
1699 Implied Table Table

*

*

 implied:Table
1700 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1701 Receivables: Abstract atto:TaxesReceivablesAbstract
1702 Non-current indirect taxes Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax
1703 Current indirect taxes Concept (Monetary) As Of Debit ifrs-full:CurrentValueAddedTaxReceivables
1704 Current other taxes Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
1705 Current income tax Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
1706 Total Concept (Monetary) As Of Debit atto:TaxesReceivable
1707 Payables: Abstract atto:TaxesPayablesAbstract
1708 Non-current social security Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax
1709 Current indirect taxes Concept (Monetary) As Of Credit ifrs-full:CurrentValueAddedTaxPayables
1710 Current other taxes Concept (Monetary) As Of Credit atto:OtherCurrentTaxesPayables
1711 Current income tax Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
1712 Total Concept (Monetary) As Of Credit atto:TaxesPayable
1713 042101 - Disclosure - PROVISIONS AND CONTINGENCIES - MOVEMENTS IN PROVISIONS (Details) Network

*

*

 http://www.Atento.com/role/PROVISIONSANDCONTINGENCIESMOVEMENTSINPROVISIONSDetails
1714 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1715 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1716 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1717 Non-current provisions for liabilities [member] Member atto:NoncurrentProvisionsForLiabilitiesMember
1718 Non-current provisions for taxes [member] Member atto:NoncurrentProvisionsForTaxesMember
1719 Non-current provisions for dismantling [member] Member atto:NoncurrentProvisionsForDismantlingMember
1720 Non-current other provisions [member] Member atto:NoncurrentOtherProvisionsMember
1721 Current provisions for liabilities [member] Member atto:CurrentProvisionsForLiabilitiesMember
1722 Current provisions for taxes [member] Member atto:CurrentProvisionsForTaxesMember
1723 Current provisions for dismantling [member] Member atto:CurrentProvisionsForDismantlingMember
1724 Current other provisions [member] Member atto:CurrentOtherProvisionsMember
1725 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1726 Provisions, beginning balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
1727 Additions Concept (Monetary) For Period Credit ifrs-full:AdditionalProvisionsOtherProvisions
1728 Acquisitions through business combinations, other provisions Concept (Monetary) For Period Credit ifrs-full:AcquisitionsThroughBusinessCombinationsOtherProvisions
1729 Payments Concept (Monetary) For Period Debit atto:Repaymentofotherprovisions
1730 Reversal Concept (Monetary) For Period Debit ifrs-full:UnusedProvisionReversedOtherProvisions
1731 Transfers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions
1732 Translations differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
1733 Provisions, ending balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
1734 042102 - Disclosure - PROVISIONS AND CONTINGENCIES - CONTINGENCY NARRATIVE (Details) Network

*

*

 http://www.Atento.com/role/PROVISIONSANDCONTINGENCIESCONTINGENCYNARRATIVEDetails
1735 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1736 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
1737 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
1738 Tax authorities Member ifrs-full:TaxContingentLiabilityMember
1739 Other contingencies Member ifrs-full:OtherContingentLiabilitiesMember
1740 Labour related disputes Member atto:LabourRelatedContintentLiabilitiesMember
1741 Various Member atto:VariousContingentLiabilitiesMember
1742 Segments [axis] Axis ifrs-full:SegmentsAxis
1743 Segments [member] Member ifrs-full:SegmentsMember
1744 Atento Brasil [member] Member atto:AtentoBrasilMember
1745 Atento Teleservicios Espana S.A.U. and our other Spanish companies Member atto:AtentoTeleserviciosEspaNaSAUAndOurOtherSpanishCompaniesMember
1746 Atento Mexico S.A. de CV [member] Member atto:AtentoMexicoSADeCVMember
1747 R Brasil Solucoes S.A. [member] Member atto:RBrasilSolucoesSaMember
1748 CBCC [member] Member atto:CBCCMember
1749 Teleatento del Peru. S.A.C [member] Member atto:TeleatentoDelPeruSacMember
1750 Atento Servicios. S.A. de C.V. [member] Member atto:AtentoServiciosSaDeMember
1751 Atento Atencion y Servicios. S.A. de C.V. [member] Member atto:AtentoAtencionYServiciosSaDeMember
1752 Nova Interfile Holding [Member] Member atto:NovaInterfileHoldingMember
1753 Classification Of Contingent Liabilties Risk [Axis] Axis atto:ClassificationOfContingentLiabiltiesProbilityAxis
1754 All Levels Of Contingent Liabilities Risk [Member] Member atto:AllLevelsOfContingentLiabilitiesProbabilityDomain
1755 Probable [member] Member atto:ProbableContingentLiabilityMember
1756 Possible [member] Member atto:PossibleContingentLiabilityMember
1757 Remote [member] Member atto:RemoteContingentLiabilityMember
1758 Probable And Possible [member] Member atto:ProbableAndPossibleContingentLiabilityMember
1759 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1760 Payments in escrow related to legal claims Concept (Monetary) For Period atto:PaymentInEscrwoRelatedToLegalClaims
1761 Payments in escrow related to tax claims Concept (Monetary) For Period atto:PaymentInEscrwoRelatedToTaxClaims
1762 Number of claims Concept (Decimal) For Period atto:NumberOfLegalClaimsIncurred
1763 Claim amount Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
1764 Claim amount duration Concept (Monetary) For Period atto:Claimamountcontingentliabilities
1765 042200 - Disclosure - REVENUE AND EXPENSES - REVENUE & EXPENSES - EXCLUDING DISCONTINUED OPERATIONS (Details) Network

*

*

 http://www.Atento.com/role/REVENUEANDEXPENSESREVENUEEXPENSESEXCLUDINGDISCONTINUEDOPERATIONSDetails
1766 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1767 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1768 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
1769 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
1770 Atento Morocco [member] Member atto:AtentoMoroccoMember
1771 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1772 Services rendered Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
1773 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1774 Expenses by Nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1775 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1776 Grants Concept (Monetary) For Period Credit ifrs-full:RevenueFromGovernmentGrants
1777 Income from indemnities and other non-recurring income Concept (Monetary) For Period Credit atto:IncomeFromIndemnitiesAndOtherNonRecurringIncome
1778 Gains on disposals of non-current assets Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfNoncurrentAssets
1779 Total Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
1780 Supplies [Abstract] Abstract ifrs-full:CurrentRawMaterialsAndCurrentProductionSuppliesAbstract
1781 Subcontracted Services Expense Concept (Monetary) For Period Debit atto:SubontractedServicesExpense
1782 Infrastructure Leases Concept (Monetary) For Period Debit atto:MinimumOperatingLeasePaymentsInfrastructureLeases
1783 Purchases of Materials Concept (Monetary) For Period Debit atto:PurchaseOfMaterials
1784 Communications Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
1785 Expenses with Public Agency Concept (Monetary) For Period Debit atto:PublicAgenciesProfessionalServicesExpense
1786 Other Concept (Monetary) For Period Debit atto:OtherServiceExpense
1787 Service expense Concept (Monetary) For Period Debit ifrs-full:ServicesExpense
1788 Employee Benefit Expenses Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
1789 Wages and Salaries Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1790 Social Security (a) Concept (Monetary) For Period Debit ifrs-full:SocialSecurityContributions
1791 Supplementary Pension Contributions Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1792 Termination benefits Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
1793 Other welfare costs Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
1794 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1795 Depreciation and amortisation expense [abstract] Abstract ifrs-full:DepreciationAndAmortisationExpenseAbstract
1796 Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
1797 Intangible Assets Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
1798 Total Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1799 Other Operating Expense [Abstract] Abstract atto:OtherOperatingExpenseAbstract
1800 Services provided by third parties Concept (Monetary) For Period Debit atto:Servicesprovidedbythirdparties
1801 Losses on disposal of fixed assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1802 Taxes other than income tax Concept (Monetary) For Period Debit ifrs-full:TaxExpenseOtherThanIncomeTaxExpense
1803 Other management expenses Concept (Monetary) For Period Debit atto:OtherManagementExpenses
1804 Total Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1805 042201 - Disclosure - REVENUE AND EXPENSES - REVENUE & EXPENSES (Details) Network

*

*

 http://www.Atento.com/role/REVENUEANDEXPENSESREVENUEEXPENSESDetails
1806 Implied Table Table

*

*

 implied:Table
1807 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1808 Services rendered Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
1809 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1810 Expenses by Nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1811 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1812 Grants Concept (Monetary) For Period Credit ifrs-full:RevenueFromGovernmentGrants
1813 Income from indemnities and other non-recurring income Concept (Monetary) For Period Credit atto:IncomeFromIndemnitiesAndOtherNonRecurringIncome
1814 Gains on disposals of non-current assets Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfNoncurrentAssets
1815 Gains On Disposals Of Property Plant And Equipment Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfPropertyPlantAndEquipment
1816 Total Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
1817 Supplies [Abstract] Abstract ifrs-full:CurrentRawMaterialsAndCurrentProductionSuppliesAbstract
1818 Subcontracted Services Expense Concept (Monetary) For Period Debit atto:SubontractedServicesExpense
1819 Infrastructure Leases Concept (Monetary) For Period Debit atto:MinimumOperatingLeasePaymentsInfrastructureLeases
1820 Purchases of Materials Concept (Monetary) For Period Debit atto:PurchaseOfMaterials
1821 Communications Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
1822 Expenses with Public Agency Concept (Monetary) For Period Debit atto:PublicAgenciesProfessionalServicesExpense
1823 Other Concept (Monetary) For Period Debit atto:OtherServiceExpense
1824 Total Concept (Monetary) For Period Debit ifrs-full:ServicesExpense
1825 Employee Benefit Expenses Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
1826 Wages and Salaries Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1827 Social Security (a) Concept (Monetary) For Period Debit ifrs-full:SocialSecurityContributions
1828 Supplementary Pension Contributions Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1829 Termination benefits Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
1830 Other welfare costs Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
1831 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1832 Depreciation and amortisation expense [abstract] Abstract ifrs-full:DepreciationAndAmortisationExpenseAbstract
1833 Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
1834 Intangible Assets Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
1835 Total Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1836 Other Operating Expense [Abstract] Abstract atto:OtherOperatingExpenseAbstract
1837 Services provided by third parties Concept (Monetary) For Period Debit atto:Servicesprovidedbythirdparties
1838 Losses on disposal of fixed assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1839 Taxes other than income tax Concept (Monetary) For Period Debit ifrs-full:TaxExpenseOtherThanIncomeTaxExpense
1840 Other management expenses Concept (Monetary) For Period Debit atto:OtherManagementExpenses
1841 Total Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1842 042202 - Disclosure - REVENUE AND EXPENSES - THIRD PARTIES (Details) Network

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 http://www.Atento.com/role/REVENUEANDEXPENSESTHIRDPARTIESDetails
1843 Implied Table Table

*

*

 implied:Table
1844 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1845 External services provided by other companies [abstract] Abstract atto:ExternalServicesProvidedByOtherCompaniesAbstract
1846 Leases Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
1847 Installation and maintenance Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
1848 Lawyers and law firms Concept (Monetary) For Period Debit atto:LegalExpenses
1849 Tax advisory services Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForTaxServices
1850 Consultants Concept (Monetary) For Period Debit atto:ConsultingServicesExpense
1851 Audits and other related services Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForAuditServices
1852 Studies and work performed Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
1853 Other external professional services Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
1854 Publicity, advertising and public relations Concept (Monetary) For Period Debit ifrs-full:AdvertisingExpense
1855 Insurance premiums Concept (Monetary) For Period Debit ifrs-full:InsuranceExpense
1856 Travel expenses Concept (Monetary) For Period Debit ifrs-full:TravelExpense
1857 Utilities expense Concept (Monetary) For Period Debit ifrs-full:UtilitiesExpense
1858 Banking and similar services Concept (Monetary) For Period Debit ifrs-full:BankAndSimilarCharges
1859 Other Concept (Monetary) For Period Debit atto:OtherThirdPartyServices
1860 TOTAL Concept (Monetary) For Period Debit atto:ServicesExpenseThirdParty
1861 Finance Income [Abstract] Abstract atto:FinanceIncomeAbstract
1862 Interest Income Third Parties Concept (Monetary) For Period Credit atto:InterestIncomeThirdParties
1863 Total finance income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1864 Interest costs [abstract] Abstract ifrs-full:InterestCostsAbstract
1865 Interest paid to Group companies Concept (Monetary) For Period Debit atto:InterestExpenseRelatedParties
1866 Interest paid to third parties Concept (Monetary) For Period Debit atto:InterestExpenseThirdParties
1867 Discounts to the present value of provisions and other liabilities Concept (Monetary) For Period Debit atto:PresentValueOfProvisionsAndOtherLiabilities
1868 Total finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1869 042203 - Disclosure - REVENUE AND EXPENSES - THIRD PARTIES - EXCLUDING DISCONTINUED OPERATIONS (Details) Network

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 http://www.Atento.com/role/REVENUEANDEXPENSESTHIRDPARTIESEXCLUDINGDISCONTINUEDOPERATIONSDetails
1870 Disclosure of operating segments [table] Table

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*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1871 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1872 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
1873 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
1874 Atento Morocco [member] Member atto:AtentoMoroccoMember
1875 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1876 Finance Income [Abstract] Abstract atto:FinanceIncomeAbstract
1877 Interest Income Third Parties Concept (Monetary) For Period Credit atto:InterestIncomeThirdParties
1878 Total finance income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1879 Interest costs [abstract] Abstract ifrs-full:InterestCostsAbstract
1880 Interest paid to Group companies Concept (Monetary) For Period Debit atto:InterestExpenseRelatedParties
1881 Interest paid to third parties Concept (Monetary) For Period Debit atto:InterestExpenseThirdParties
1882 Discounts to the present value of provisions and other liabilities Concept (Monetary) For Period Debit atto:PresentValueOfProvisionsAndOtherLiabilities
1883 Total finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1884 042204 - Disclosure - REVENUE AND EXPENSES - CHANGE IN FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) Network

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*

 http://www.Atento.com/role/REVENUEANDEXPENSESCHANGEINFAIRVALUEOFFINANCIALINSTRUMENTSDetails
1885 Disclosure of financial assets [table] Table

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*

 ifrs-full:DisclosureOfFinancialAssetsTable
1886 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1887 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1888 Loans and receivables [member] Member atto:LoansAndReceivableMember
1889 Other financial transactions [member] Member atto:OtherFinancialTransactionsMember
1890 Current transactions [member] Member atto:CurrentTransactionsMember
1891 Disposal of Financial assets [member] Member atto:DisposalOfFinancialAssetsMember
1892 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1893 Change in fair value of financial instruments, Gains Concept (Monetary) For Period Credit ifrs-full:GainsOnChangeInFairValueOfDerivatives
1894 Losses on change in fair value of derivatives Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
1895 Net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
1896 Net foreign exchange gain Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
1897 Net foreign exchange loss Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
1898 Net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1899 042301 - Disclosure - SEGMENT INFORMATION - MAJOR DATA (Details) Network

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*

 http://www.Atento.com/role/SEGMENTINFORMATIONMAJORDATADetails
1900 Disclosure of operating segments [table] Table

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*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1901 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
1902 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
1903 Other and eliminations Member ifrs-full:EliminationOfIntersegmentAmountsMember
1904 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1905 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1906 EMEA [Member] Member atto:EMEAMember
1907 Americas [Member] Member atto:AmericasMember
1908 BRAZIL [Member] Member country:BR
1909 Segments [axis] Axis ifrs-full:SegmentsAxis
1910 Segments [member] Member ifrs-full:SegmentsMember
1911 Sales to other companies Member atto:OtherCompaniesMember
1912 Sales to Telefonica Group Member atto:TelefonicaGroupMember
1913 Sales to other group companies Member atto:OtherGroupCompaniesMember
1914 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1915 Sales Concept (Monetary) For Period Credit ifrs-full:Revenue
1916 Other Operating Income (expense) Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1917 EBITDA Concept (Monetary) For Period Credit atto:EarningsBeforeInterestTaxDepreciationAmortisation
1918 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1919 Operating profit/(loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
1920 Net finance expense Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
1921 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1922 Profit/(loss) from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
1923 Profit (loss) from discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
1924 Profit/(loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1925 Acquisition and integration related costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
1926 Restructuring costs Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
1927 Shared Services Expense Concept (Monetary) For Period Debit atto:SharedServicesExpense
1928 Sponsor Management Fees Concept (Monetary) For Period Debit atto:SponsorManagementFees
1929 Site relocation expenses Concept (Monetary) For Period Debit atto:SiteRelocationExpenses
1930 Financing and IPO fees Concept (Monetary) For Period Debit atto:FinancingAndInitialPulicOfferingCosts
1931 Asset impairments and Other Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
1932 Adjusted EBITDA (unaudited) Concept (Monetary) As Of Credit atto:AdjustedProfitBeforeInterestTaxDepreciationAmortisation
1933 Capital expenditure Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
1934 Fixed assets Concept (Monetary) As Of Debit atto:PropertyPlantEquipmentGoodwillAndIntangibles
1935 Allocated assets Concept (Monetary) As Of Debit ifrs-full:Assets
1936 Allocated liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1937 042302 - Disclosure - SEGMENT INFORMATION - REVENUE (Details) Network

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*

 http://www.Atento.com/role/SEGMENTINFORMATIONREVENUEDetails
1938 Disclosure of operating segments [table] Table

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*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1939 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
1940 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
1941 Other and eliminations Member ifrs-full:EliminationOfIntersegmentAmountsMember
1942 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1943 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1944 EMEA [Member] Member atto:EMEAMember
1945 Americas [Member] Member atto:AmericasMember
1946 BRAZIL [Member] Member country:BR
1947 Countries [Axis] Axis atto:CountriesAxis
1948 All Countries [Domain] Member country:AllCountriesDomain
1949 ARGENTINA [Member] Member country:AR
1950 CHILE [Member] Member country:CL
1951 COLOMBIA [Member] Member country:CO
1952 EL SALVADOR [member] Member country:SV
1953 UNITED STATES [Member] Member country:US
1954 GUATEMALA [Member] Member country:GT
1955 MEXICO [Member] Member country:MX
1956 PERU [Member] Member country:PE
1957 PUERTO RICO [member] Member country:PR
1958 URUGUAY [member] Member country:UY
1959 PANAMA [member] Member country:PA
1960 SPAIN [Member] Member country:ES
1961 CZECH REPUBLIC [Member] Member country:CZ
1962 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1963 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1964 Percentage Of Service Revenue Concept (Percent) For Period atto:PercentageOfServiceRevenue
1965 042401 - Disclosure - EARNINGS/(LOSS) PER SHARE (Details) Network

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 http://www.Atento.com/role/EARNINGSLOSSPERSHAREDetails
1966 Implied Table Table

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 implied:Table
1967 Disclosure of earnings per share [abstract] Abstract atto:DisclosureOfEarningsPerShareAbstract
1968 Result attributable to equity owners of the Company Abstract ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract
1969 Atento's Profit/(loss) attributable to equity owners of the parent from continuing operations (in thousands of U.S. dollars) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
1970 Atento's Loss attributable to equity owners of the parent from discontinued operations (in thousands of U.S. dollars) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
1971 Weigthed average number of ordinary shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
1972 Basic earnings (loss) per share from continuing operations Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
1973 Basic loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromDiscontinuedOperations
1974 Potential Increase Decrease In Shares Related To Sharebased Compensation Plan Concept (Shares) For Period atto:PotentialIncreaseDecreaseInSharesRelatedToSharebasedCompensationPlan
1975 Adjusted weighted average number of ordinary shares outstanding Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1976 Diluted (loss)/earnings per share from continuing operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
1977 Diluted loss per share from discontinued operations (in U.S. dollars) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations
1978 Potential ordinary shares relating to stock option plan oustanding Concept (Shares) As Of atto:PotentialSharesRelatedToSharebasedCompensationPlanOustanding
1979 042501 - Disclosure - COMMITMENTS - GUARANTEES AND COMMITMENTS (Details) Network

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 http://www.Atento.com/role/COMMITMENTSGUARANTEESANDCOMMITMENTSDetails
1980 Implied Table Table

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*

 implied:Table
1981 Disclosure of commitments [abstract] Abstract atto:Disclosureofcommitmentsabstract
1982 Guarantees Abstract atto:GuranteesAndCommitmentsAbstract
1983 Financial, labor-related, tax and rental transactions Concept (Monetary) As Of Credit atto:FinancialLaborTaxAndRentalTransactions
1984 Contractual Obligations Concept (Monetary) As Of Credit atto:ContractualObligations
1985 Other Concept (Monetary) As Of Credit atto:OtherGuaranteesAndCommitments
1986 Guarantees and commitments to third parties Concept (Monetary) As Of Credit atto:GuaranteesAndCommitments
1987 042502 - Disclosure - COMMITMENTS - OPERATING LEASES (Details) Network

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*

 http://www.Atento.com/role/COMMITMENTSOPERATINGLEASESDetails
1988 Disclosure of finance lease and operating lease by lessee [table] Table

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*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1989 Maturity [axis] Axis ifrs-full:MaturityAxis
1990 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1991 Up to 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1992 Between 1 and 5 years Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1993 More than 5 years Member ifrs-full:LaterThanFiveYearsMember
1994 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1995 Total minimum future lease payments under non-cancellable operating leases Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1996 Total operating lease expenses recognized in the consolidated income statements (External services provided by other companies-Leases) Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
1997 Total operating lease expenses recognized in the consolidated income statements (Infrastructure Leases) Concept (Monetary) For Period Debit atto:MinimumOperatingLeasePaymentsInfrastructureLeases
1998 Contingent payments on operating leases Concept (Monetary) For Period Debit ifrs-full:ContingentRentsRecognisedAsExpenseClassifiedAsOperatingLease
1999 Payment commitment for the early cancellation of leases Concept (Monetary) As Of Credit atto:CommitmentsForEarlyCancellationOfLeases
2000 042601 - Disclosure - RELATED PARTIES (Details) Network

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*

 http://www.Atento.com/role/RELATEDPARTIESDetails
2001 Implied Table Table

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*

 implied:Table
2002 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
2003 The total remuneration paid to the Atento Group's key management personnel Abstract atto:KeyManagementPersonnelCompensationAbstract
2004 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
2005 The breakdown of the total remuneration shown above is as follow: Abstract atto:BreakdownOfTotalRemunerationAbstract
2006 Salaries and variable remuneration Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationSalariesAndVariableRenumeration
2007 Salaries Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationSalaries
2008 Variable remuneration Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationVariableRenumeration
2009 Payment in kind Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
2010 Medical insurance Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationMedicalInsurance
2011 Life insurance premiums Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationLifeInsurancePremiums
2012 Key Management Personnel Compensation Other Shortterm Employee Benefits Concept (Monetary) For Period Debit atto:KeyManagementPersonnelCompensationOtherShorttermEmployeeBenefits
2013 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
2014 042701 - Disclosure - EVENTS AFTER THE REPORTING PERIOD (Details) Network

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*

 http://www.Atento.com/role/EVENTSAFTERTHEREPORTINGPERIODDetails
2015 DisclosureOfNonadjustingEventsAfterReportingPeriodTable Table

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*

 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
2016 NonadjustingEventsAfterReportingPeriodAxis Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
2017 NonadjustingEventsMember Member ifrs-full:NonadjustingEventsMember
2018 EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember Member ifrs-full:EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
2019 Segments [axis] Axis ifrs-full:SegmentsAxis
2020 Segments [member] Member ifrs-full:SegmentsMember
2021 Atento SA Member [Member] Member atto:AtentoSAMember
2022 Classification Of Contingent Liabilties Risk [Axis] Axis atto:ClassificationOfContingentLiabiltiesProbilityAxis
2023 All Levels Of Contingent Liabilities Risk [Member] Member atto:AllLevelsOfContingentLiabilitiesProbabilityDomain
2024 Possible [member] Member atto:PossibleContingentLiabilityMember
2025 Disclosure Of Non adjusting Events After Reporting Period [LineItems] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
2026 DescriptionOfNatureOfNonadjustingEventAfterReportingPeriod Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfNonadjustingEventAfterReportingPeriod
2027 Tax assessment Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
2028 Other provisions Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
2029 060041 - Disclosure - DISCONTINUED OPERATIONS - RESULTS (Details) Network

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*

 http://www.Atento.com/role/DISCONTINUEDOPERATIONSRESULTSDetails
2030 Disclosure of operating segments [table] Table

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*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2031 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
2032 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
2033 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
2034 Disclosure Of Operating Segments [Line Items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
2035 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
2036 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
2037 Operating expenses: Abstract ifrs-full:ExpenseByNatureAbstract
2038 Service expense Concept (Monetary) For Period Debit ifrs-full:ServicesExpense
2039 Employee benefits expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
2040 Depreciation expense Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
2041 Amortisation expense Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
2042 Increase (decrease) in other provisions Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
2043 Other expenses, by nature Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
2044 Operating expense Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
2045 Profit (loss) from operating activities Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
2046 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
2047 Foreign exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
2048 Finance income (cost) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
2049 Profit (loss) before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
2050 Tax expense relating to profit (loss) from ordinary activities of discontinued operations Concept (Monetary) For Period Debit ifrs-full:TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations
2051 Profit (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
2052 Loss on disposal group constituting discontinued operation Concept (Monetary) For Period Credit atto:LossOnDisposalGroupConstitutingDiscontinuedOperation
2053 Profit (loss) from discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
2054 Cash flows from (used in) operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
2055 Cash flows from (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
2056 Cash flows from (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
2057 Increase (decrease) in cash and cash equivalents before effect of exchange rate changes Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
2058 Effect of exchange rate changes on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
2059 Cash and cash equivalents at beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2060 Cash and cash equivalents at end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents

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