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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions		3 Months Ended
	May 06, 2022 USD ($)	Mar. 31, 2022 USD ($) plaintiff lawsuit	Dec. 31, 2017 USD ($)
Recorded Unconditional Purchase Obligation [Line Items]
Indemnification liabilities		$ 2.8
Maximum exposure of indemnification liability		$ 11.7
Groupon Latin America
Recorded Unconditional Purchase Obligation [Line Items]
Estimated indemnification liability			$ 5.4
Securities Lawsuit | Subsequent Event
Recorded Unconditional Purchase Obligation [Line Items]
Litigation settlement amount	$ 13.5
Litigation settlement amount covered under insurance	$ 13.5
Derivative Lawsuits
Recorded Unconditional Purchase Obligation [Line Items]
Loss contingency, number of plaintiffs | plaintiff		3
Loss contingency, number of lawsuits | lawsuit		3

X

- Definition

Indemnification Liabilities Assumed

+ References

No definition available.

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X

- Definition

Indemnification Liability

+ References

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- Definition

Indemnification Liability, Estimated Maximum Exposure

+ References

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- Definition

Litigation Settlement Amount, Covered Under Insurance

+ References

No definition available.

+ Details

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

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X

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

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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.

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