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SIGNIFICANT ACCOUNTING POLICIES (Ownership percentage of principal subsidiaries) (Details) | 12 Months Ended
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Dec. 30, 2018
Gildan Activewear SRL |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Branded Apparel SRL |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Honduras Properties, S. de R.L. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Apparel (Canada) LP |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Activewear (UK) Limited |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Textiles de Sula, S. de R.L. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
G.A.B. Limited |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Activewear Honduras Textile Company, S. de R.L. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Activewear (Eden) Inc. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Hosiery Rio Nance, S. de R.L. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%
Gildan Mayan Textiles, S. de R.L. |
Disclosure of subsidiaries [line items] |
Ownership percentage | 100.00%

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- 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
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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_17_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2017-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_16_b_iii&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_19B_c&doctype=Standard -URIDate 2017-03-09 + Details
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