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INCOME TAXES - Additional Information (Details) € in Millions | 1 Months Ended | 2 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2025 USD ($) | Dec. 31, 2025 EUR (€) | Mar. 10, 2026 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2025 EUR (€) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Income tax payments | [1] |  |  |  | $ 36,771,000 |  | $ 15,511,000 | $ 7,904,000
Unrecognized tax benefits that would impact effective tax rate |  | $ 12,100,000 |  |  | 12,100,000 |  | 11,900,000 | 7,600,000
Income tax examination, penalties and interest expense (benefit) |  |  |  |  | (800,000) |  | 700,000 | $ 600,000
Income tax examination, penalties and interest accrued |  | 1,100,000 |  |  | 1,100,000 |  | $ 1,900,000 |
United States |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Net operating loss carryforwards, subject to expiration |  | 14,000,000.0 |  |  | 14,000,000.0 |  |  |
State |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Net operating loss carryforwards, subject to expiration |  | 33,500,000 |  |  | 33,500,000 |  |  |
International |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Net operating loss carryforwards, not subject to expiration |  | 972,400,000 |  |  | $ 972,400,000 |  |  |
Italy | Italy 2012 Assessment And Italy 2017 Assessment | Groupon S.r.l |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Income tax examination, penalties expense |  | 25,300,000 | € 21.5 |  |  |  |  |
Income Tax, Penalty Recognition, Classification [Extensible Enumeration] |  |  |  |  | Provision (benefit) for income taxes | Provision (benefit) for income taxes |  |
Income tax examination, penalties expense, previously paid |  | $ 10,400,000 | € 8.9 |  |  |  |  |
Income tax examination, penalties expense, net of previously paid |  |  |  |  | $ 14,800,000 | € 12.6 |  |
Italy | Italy 2012 Assessment And Italy 2017 Assessment | Groupon S.r.l | Subsequent Event |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |
Income tax examination, penalties expense |  |  |  | $ 0 |  |  |  |
[1] | Income tax payments is inclusive of payments remitted, net of refunds received, related to the settlement of the Italy 2012 and 2017 Assessments. See Note 15, Income Taxes, for additional information.

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