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Commitments and Contingencies - Investment Commitments (Details) - Aug. 03, 2019 € in Millions, $ in Millions | USD ($) | EUR (€)
--- | --- | ---
Private equity fund |  |
Investment commitments |  |
Unfunded commitment to invest in private equity fund | $ 4.0 | € 3.6

X
- Definition Represents the entity's unfunded commitments to invest in private equity funds as of the reporting date. + References No definition available. + Details
Name: | ges_UnfundedCommitmentFundInvestment
Namespace Prefix: | ges_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | invest_InvestmentAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |