XML 101 R84.htm IDEA: XBRL DOCUMENT
v3.10.0.1

FINANCIAL INSTRUMENTS (Commitments to buy and sell foreign currencies) (Details) - 12 months ended Dec. 30, 2018 - Foreign currency risk - Cash flow hedges € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands | USD ($) | CAD ($) | MXN ($) | EUR (€) | GBP (£) | AUD ($)
--- | --- | --- | --- | --- | --- | ---
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 158,308 |  |  |  |  |
Financial assets, carrying value | 4,099 |  |  |  |  |
Financial liabilities, carrying value | (1,199) |  |  |  |  |
Net financial assets (liabilities) | $ 2,900 |  |  |  |  |
Minimum |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Remaining maturity | 0 months |  |  |  |  |
Maximum |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Remaining maturity | 12 months |  |  |  |  |
Sell GBP/Buy USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 37,703 |  |  |  | £ 28,510 |
Average exchange rate | 1.3224 |  |  |  |  |
Financial assets, carrying value | $ 1,366 |  |  |  |  |
Financial liabilities, carrying value | 0 |  |  |  |  |
Net financial assets (liabilities) | 1,366 |  |  |  |  |
Sell EUR/Buy USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 37,551 |  |  | € 31,578 |  |
Average exchange rate | 1.1892 |  |  |  |  |
Financial assets, carrying value | $ 1,004 |  |  |  |  |
Financial liabilities, carrying value | (19) |  |  |  |  |
Net financial assets (liabilities) | 985 |  |  |  |  |
Sell CAD/Buy USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 25,776 | $ 33,114 |  |  |  |
Average exchange rate | 0.7784 |  |  |  |  |
Financial assets, carrying value | $ 1,369 |  |  |  |  |
Financial liabilities, carrying value | 0 |  |  |  |  |
Net financial assets (liabilities) | 1,369 |  |  |  |  |
Buy CAD/Sell USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 47,712 | $ 62,921 |  |  |  |
Average exchange rate | 0.7583 |  |  |  |  |
Financial assets, carrying value | $ 0 |  |  |  |  |
Financial liabilities, carrying value | (1,180) |  |  |  |  |
Net financial assets (liabilities) | (1,180) |  |  |  |  |
Sell AUD/Buy USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 5,800 |  |  |  |  | $ 7,941
Average exchange rate | 0.7304 |  |  |  |  |
Financial assets, carrying value | $ 198 |  |  |  |  |
Financial liabilities, carrying value | 0 |  |  |  |  |
Net financial assets (liabilities) | 198 |  |  |  |  |
Buy MXN/Sell USD |  |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |  |
Notional amount | $ 3,766 |  | $ 79,275 |  |  |
Average exchange rate | 0.0475 |  |  |  |  |
Financial assets, carrying value | $ 162 |  |  |  |  |
Financial liabilities, carrying value | 0 |  |  |  |  |
Net financial assets (liabilities) | $ 162 |  |  |  |  |

X
- Definition Derivative, Remaining Maturity2 + References No definition available. + Details
Name: | gil_DerivativeRemainingMaturity2
Namespace Prefix: | gil_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_AverageForeignExchangeRate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value of financial instruments designated as hedging instruments. Hedging instruments are designated derivatives or (for a hedge of the risk of changes in foreign currency exchange rates only) designated non-derivative financial assets or non-derivative financial liabilities whose fair value or cash flows are expected to offset changes in the fair value or cash flows of a designated hedged item. [Refer: At fair value [member]; Derivatives [member]; Derivative financial assets; Derivative financial liabilities; Financial instruments, class [member]; Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 22 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_22_b&doctype=Standard&book=B -URIDate 2017-03-09 + Details
Name: | ifrs-full_FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of a hedging instrument, recognised as an asset. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 24A -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24A_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_HedgingInstrumentAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 24A -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24A_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_HedgingInstrumentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractSellGBPBuyUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractSellEURBuyUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractsSellCADBuyUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractBuyCADSellUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractSellAUDBuyUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=gil_ForwardForeignExchangeContractBuyMXNSellUSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |