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, 2022			40,786,996
Beginning balance at Dec. 31, 2022	$ 8,858	$ 8,475	$ 4	$ 2,322,672	$ (922,666)	$ (1,394,477)	$ 2,942	$ 383
Beginning balance (in shares) at Dec. 31, 2022					(10,294,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(61,523)	(63,999)				(55,410)	(8,589)	2,476
Exercise of stock options (in shares)			437,500
Exercise of stock options	2,625	2,625		2,625
Vesting of RSUs and PSUs (in shares)			1,385,284
Shares issued under ESPP (in shares)			45,879
Shares issued under ESPP	307	307		307
Tax withholdings related to net share settlements of stock-based compensation awards (in shares)			(508,393)
Tax withholdings related to net share settlements of stock-based compensation awards	(3,321)	(3,321)		(3,321)
Stock-based compensation on equity-classified awards	15,282	15,282		15,282
Distributions to noncontrolling interest holders	(2,540)							(2,540)
Ending balance (in shares) at Dec. 31, 2023			42,147,266
Ending balance at Dec. 31, 2023	(40,312)	(40,631)	$ 4	2,337,565	$ (922,666)	(1,449,887)	(5,647)	319
Ending balance (in shares) at Dec. 31, 2023					(10,294,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(20,133)	(22,646)				(59,027)	36,381	2,513
Rights Offering, net of issuance costs (in shares)			7,079,646
Rights Offering, net of issuance costs	79,619	79,619	$ 1	79,618
Vesting of RSUs and PSUs (in shares)			1,029,421
Shares issued under ESPP (in shares)			11,612
Shares issued under ESPP	92	92		92
Tax withholdings related to net share settlements of stock-based compensation awards (in shares)			(177,919)
Tax withholdings related to net share settlements of stock-based compensation awards	(2,501)	(2,501)		(2,501)
Stock-based compensation on equity-classified awards	26,882	26,882		26,882
Distributions to noncontrolling interest holders	$ (2,596)							(2,596)
Ending balance (in shares) at Dec. 31, 2024	39,795,909		50,090,026
Ending balance at Dec. 31, 2024	$ 41,051	40,815	$ 5	2,441,656	$ (922,666)	(1,508,914)	30,734	236
Ending balance (in shares) at Dec. 31, 2024	(10,294,117)				(10,294,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	$ (117,936)	(119,759)				(83,520)	(36,239)	1,823
Vesting of RSUs and PSUs (in shares)			1,166,076
Shares issued under ESPP (in shares)			12,594
Shares issued under ESPP	129	129		129
Tax withholdings related to net share settlements of stock-based compensation awards (in shares)			(242,266)
Tax withholdings related to net share settlements of stock-based compensation awards	(6,808)	(6,808)		(6,808)
Stock-based compensation on equity-classified awards	40,266	40,266		40,266
Distributions to noncontrolling interest holders	(1,887)							(1,887)
Unwind of capped call transactions	$ 2,795	2,795		2,795
Ending balance (in shares) at Dec. 31, 2025	40,732,313		51,026,430
Ending balance at Dec. 31, 2025	$ (42,390)	$ (42,562)	$ 5	$ 2,478,038	$ (922,666)	$ (1,592,434)	$ (5,505)	$ 172
Ending balance (in shares) at Dec. 31, 2025	(10,294,117)				(10,294,117)