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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended | 36 Months Ended
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2017 | Dec. 31, 2012 | Dec. 31, 2015
Loss Contingencies [Line Items] |  |  |  |  |  |
Foreign VAT assessments | $ 0 | $ 8,692 | $ 0 |  |  |
Contingency reserve , amount | 9,724 | 8,355 |  |  |  |
Indemnification liabilities | 3,400 | 2,800 |  |  |  |
Additional liabilities recorded | 616 | 0 | 0 |  |  |
Indemnification liability, maximum exposure | 10,200 |  |  |  |  |
Groupon Latin America |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Indemnification liability |  |  |  | $ 5,400 |  |
Additional liabilities recorded | 600 |  |  |  |  |
Italy 2012 Assessment | International | Groupon S.r.l. |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Income tax examination, estimate of possible loss |  |  |  |  | $ 134,900 |
Italy 2017 Assessment | International | Groupon S.r.l. |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Income tax examination, estimate of possible loss |  |  |  | $ 35,100 |  |
Portuguese VAT Assessment, Periods 2013 To 2015 | Pending Litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Value added tax assessment, bank guarantee | 4,100 |  |  |  |  |
Portuguese VAT Assessment, Periods 2013 To 2015 | Maximum | Pending Litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Foreign VAT assessments | 4,700 |  |  |  |  |
Portuguese VAT Assessment, Periods 2011 To 2012 | Pending Litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Foreign VAT assessments |  |  |  |  |  | $ 5,000
Value added tax assessment, bank guarantee | $ 4,400 |  |  |  |  |
Contingency reserve , amount |  | $ 4,600 |  |  |  |
Lawsuit against Uptake in the Circuit Court of Cook County |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Payment to lawsuit settlement |  |  | $ 4,250 |  |  |

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