CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Total Groupon, Inc. Stockholders' Equity (Deficit)	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Beginning balance (in shares) at Dec. 31, 2024			50,090,026
Beginning balance at Dec. 31, 2024	$ 41,051	$ 40,815	$ 5	$ 2,441,656	$ (922,666)	$ (1,508,914)	$ 30,734	$ 236
Beginning balance (in shares) at Dec. 31, 2024					(10,294,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(2,815)	(3,196)				7,175	(10,371)	381
Vesting of RSUs and PSUs (in shares)			19,805
Shares issued under ESPP (in shares)			6,509
Shares issued under ESPP	67	67		67
Tax withholdings related to net share settlements of stock-based compensation awards (in shares)			(9,417)
Tax withholdings related to net share settlements of stock-based compensation awards	44	44		44
Stock-based compensation on equity-classified awards	7,749	7,749		7,749
Distributions to noncontrolling interest holders	(439)							(439)
Ending balance (in shares) at Mar. 31, 2025			50,106,923
Ending balance at Mar. 31, 2025	$ 45,657	45,479	$ 5	2,449,516	$ (922,666)	(1,501,739)	20,363	178
Ending balance (in shares) at Mar. 31, 2025					(10,294,117)
Beginning balance (in shares) at Dec. 31, 2025	40,732,313		51,026,430
Beginning balance at Dec. 31, 2025	$ (42,390)	(42,562)	$ 5	2,478,038	$ (922,666)	(1,592,434)	(5,505)	172
Beginning balance (in shares) at Dec. 31, 2025	(10,294,117)				(10,294,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	$ (10,314)	(10,554)				(12,859)	2,305	240
Vesting of RSUs and PSUs (in shares)			55,000
Shares issued under ESPP (in shares)			5,797
Shares issued under ESPP	87	87		87
Tax withholdings related to net share settlements of stock-based compensation awards (in shares)			(6,991)
Tax withholdings related to net share settlements of stock-based compensation awards	$ (276)	(276)		(276)
Repurchases of Treasury Stock (in shares)	(1,940,000)				(1,944,619)
Repurchases of Treasury Stock	$ (21,290)				$ (21,290)
Stock-based compensation on equity-classified awards	12,004	12,004		12,004
Distributions to noncontrolling interest holders	$ (294)							(294)
Ending balance (in shares) at Mar. 31, 2026	38,841,500		51,080,236
Ending balance at Mar. 31, 2026	$ (62,473)	$ (62,591)	$ 5	$ 2,489,853	$ (943,956)	$ (1,605,293)	$ (3,200)	$ 118
Ending balance (in shares) at Mar. 31, 2026	(12,238,736)				(12,238,736)