XML 122 R103.htm IDEA: XBRL DOCUMENT
v3.25.0.1

SHARE-BASED COMPENSATION (Deferred share unit plan Narrative) (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) shares | Dec. 29, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Jan. 01, 2023 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |
Compensation expense included in selling, general and administrative expenses |  |  | $ 64,524,000 | $ 27,118,000 |
Accelerated vesting expense | $ 12,000,000 |  | 12,300,000 |  |
Share-based payments |  |  | 53,577,000 | $ 18,376,000 |
Mr. Chamandy |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |
Share-based payments |  | $ (6,000,000) | $ 17,000,000 |  |
DSUs1 |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |
Minimum percentage of annual board retainer in the form of share-based payment arrangement |  |  | 50.00% |  |
Number of other equity instruments outstanding (in shares) | shares |  | 410,646 | 140,393 | 410,646 | 385,000
Other equity instruments outstanding amount |  | $ 13,600,000 | $ 6,600,000 | $ 13,600,000 |
Fair value per unit outstanding (in dollars per share) |  | $ 33.06 | 46.86 | 33.06 |
Compensation expense included in selling, general and administrative expenses |  |  | $ 4,900,000 | $ 2,000,000.0 |

X
- Definition Accelerated Vesting Expense + References No definition available. + Details
Name: | gil_AcceleratedVestingExpense
Namespace Prefix: | gil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum Percentage Of Board Retainer From Share-Based Payment Arrangement + References No definition available. + Details
Name: | gil_MinimumPercentageOfBoardRetainerFromShareBasedPaymentArrangement
Namespace Prefix: | gil_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Equity Instruments Outstanding In Share-Based Payment Arrangement, Amount + References No definition available. + Details
Name: | gil_OtherEquityInstrumentsOutstandingInShareBasedPaymentArrangementAmount
Namespace Prefix: | gil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Weighted Average Fair Value Of Other Equity Instruments Outstanding In Share-Based Payment Arrangement + References No definition available. + Details
Name: | gil_WeightedAverageFairValueOfOtherEquityInstrumentsOutstandingInShareBasedPaymentArrangement
Namespace Prefix: | gil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_17_e&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=gil_Mr.ChamandyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gil_DeferredShareUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |