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PROPERTY, EQUIPMENT AND SOFTWARE, NET - Schedule of Impairment Charges for Long-lived Assets by Asset Type (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Property, Plant and Equipment [Line Items] |  |
Impairment of long-lived assets | $ 870 | $ 15,178
Leasehold improvements |  |
Property, Plant and Equipment [Line Items] |  |
Impairment of long-lived assets | 870 | 8,419
Computer hardware and purchased software |  |
Property, Plant and Equipment [Line Items] |  |
Impairment of long-lived assets | 0 | 2,842
Internally-developed software |  |
Property, Plant and Equipment [Line Items] |  |
Impairment of long-lived assets | 0 | 2,988
Other Property, equipment and software, net |  |
Property, Plant and Equipment [Line Items] |  |
Impairment of long-lived assets | $ 0 | $ 929

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- Definition Asset Impairment Charges, Excluding Goodwill Impairment + References No definition available. + Details
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Namespace Prefix: | grpn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- 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
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- Details
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- Details
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- Details
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- Details
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