Employer identification number Entity Tax Identification Number Maximum Maximum [Member] Pre tax eligible compensation EBP, Participant Contribution, Contribution To Eligible Compensation, Percentage EBP, Participant Contribution, Contribution To Eligible Compensation, Percentage Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Investment in registered investment companies Registered investment companies Mutual Fund [Member] Schedule of Net Investment Income Schedule Of Net Investment Income [Table Text Block] Schedule Of Net Investment Income Participant loan, average maturity date EBP, Asset Held for Investment, Participant Loan, Average Maturity Date EBP, Asset Held for Investment, Participant Loan, Average Maturity Date EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Recent Accounting Pronouncements EBP, Recent Accounting Pronouncements [Policy Text Block] EBP, Recent Accounting Pronouncements Additional contribution EBP, Employer Additional Contribution EBP, Employer Additional Contribution Maximum vested account balance EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount INVESTMENTS AT FAIR VALUE FAIR VALUE MEASUREMENTS EBP, Investment, Fair Value and NAV [Text Block] Minimum loan amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Accrued expenses EBP, Accrued Expense Investments, at fair value Investments, at fair value Total investment assets at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Minimum increment percentage EBP, Investment Contribution, Minimum Increment, Percent EBP, Investment Contribution, Minimum Increment, Percent Money market fund Money Market Funds [Member] Level 1 Fair Value, Inputs, Level 1 [Member] EBP, Investment, Fair Value and NAV [Abstract] Basis spread on interest rate EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Total assets EBP, Asset Assets EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Benefit Payments EBP, Payment to Participant [Policy Text Block] Total liabilities EBP, Liability Amendment Flag Amendment Flag Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Investment (in shares) EBP, Investment, Number of Shares EBP, Description of Plan and Accounting Change [Abstract] Receivables: EBP, Receivable [Abstract] Schedule of Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] Annual increase EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate Annual increase in percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) until the contribution reaches maximum threshold. Investments [Domain] Investments [Domain] Total matching contribution EBP, Employer Contribution, Including Discretionary Quarterly Contributions EBP, Employer Contribution, Including Discretionary Quarterly Contributions Use of Estimates EBP, Use of Estimate [Policy Text Block] EBP, Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Company EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Administrative Expenses EBP, Administrative Expenses [Policy Text Block] EBP, Administrative Expenses Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Participants EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Three digit plan number EBP, Plan Number EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] DESCRIPTION OF PLAN EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Common Stock Gildan common stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Total EBP, Asset Held for Investment Shares registered (in shares) EBP, Number Of Shares Registered EBP, Number Of Shares Registered EBP 401 EBP 401 [Member] EBP 401 Document Information [Line Items] Document Information [Line Items] Matching percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Percentage of common stock EBP, Investment, Employer, Common Stock, to Total Asset, Percentage EBP, Tax Status [Table] EBP, Tax Status [Table] Net decrease EBP, Change in Net Asset Available for Benefit, Increase (Decrease) PARTY-IN-INTEREST TRANSACTIONS EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Total receivables EBP, Receivable Company-match contribution receivable EBP, Employer Contribution, Receivable Percentage of eligible compensation EBP, Participant Contribution, Automatic, Deferral Rate Benefits paid to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Current value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Employer vesting percentage EBP, Employer Contribution Vesting Percentage Company contribution and/ or investment earning percentage vesting to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions, upon completion of minimum service period or attainment of maximum vesting age EBP, Tax Status [Abstract] Participant loans: EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Valuation of Investments EBP, Investment [Policy Text Block] Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type PLAN TERMINATION EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Net receivables EBP, Net Receivables, Included In Investement At Fair Value EBP, Net Receivables, Included In Investement At Fair Value Total investment assets at fair value Total investment assets at fair value EBP, Investment, Excluding Plan Interest, Non-interest Bearing Cash, And Net Receivables, Fair Value EBP, Investment, Excluding Plan Interest, Non-interest Bearing Cash, And Net Receivables, Fair Value Investment in collective trusts Common Collective Trust [Member] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Forfeited contributions, decrease EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Non-interest bearing cash EBP, Non-interest Bearing Cash, Included In Investment At Fair Value EBP, Non-interest Bearing Cash, Included In Investment At Fair Value Notes receivable from participants EBP, Note Receivable from Participant Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] SUMMARY OF ACCOUNTING POLICIES EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Discretionary match EBP, Employer Contribution, Additional Discretionary Match EBP, Employer Contribution, Additional Discretionary Match Liabilities EBP, Liability [Abstract] TAX STATUS EBP, Tax Status [Text Block] Maximum borrowing amount percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Document Information [Table] Document Information [Table] Net investment income Total net investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Level 3 Fair Value, Inputs, Level 3 [Member] Net assets available for benefits Beginning of year End of year EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Forfeited nonvested accounts EBP, Forfeited Nonvested Account Employee contributions matching percentage EBP, Employer Contribution, Matching Percentage Partial plan termination receivable from company EBP, Partial Plan Termination Receivable EBP, Partial Plan Termination Receivable EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]