XML 137 R120.htm IDEA: XBRL DOCUMENT v3.10.0.1

ENTITY-WIDE DISCLOSURES (Major customers as a percentage of net sales) (Details)	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Customer A
Disclosure of major customers [line items]
Percentage of total net sales	19.00%	16.50%
Customer B
Disclosure of major customers [line items]
Percentage of total net sales	10.00%	7.60%

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

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Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 34
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_34&doctype=Standard
-URIDate 2017-03-09

+ Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=gil_CustomerBMember
Namespace Prefix:
Data Type:	na
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Period Type: