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Earnings (Loss) per Share - Other Narrative (Details) - $ / shares shares in Millions | 1 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2019 | Aug. 01, 2020
Earnings Per Share [Abstract] |  |
Conversion price of convertible senior notes (in dollars per share) | $ 25.78 | $ 25.78
Warrants outstanding (in shares) | 11.6 | 11.6
Strike price of warrants (in dollars per share) | $ 46.88 | $ 46.88

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- Definition Option Indexed to Issuer's Equity, Conversion Price + References No definition available. + Details
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Namespace Prefix: | ges_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration