CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue	$ 114,479	$ 126,474	$ 362,178	$ 377,194
Cost of revenue	11,584	15,796	36,059	48,840
Gross profit	102,895	110,678	326,119	328,354
Operating expenses:
Marketing	36,258	28,898	101,587	76,013
Selling, general and administrative	71,327	80,016	222,937	277,913
Restructuring and related charges	896	2,228	613	10,333
Gain on sale of assets	0	0	(5,160)	0
Total operating expenses	108,481	111,142	319,977	364,259
Income (loss) from operations	(5,586)	(464)	6,142	(35,905)
Other income (expense), net	22,429	(39,525)	5,264	(41,260)
Income (loss) before provision (benefit) for income taxes	16,843	(39,989)	11,406	(77,165)
Provision (benefit) for income taxes	2,321	817	17,802	4,258
Net income (loss)	14,522	(40,806)	(6,396)	(81,423)
Net (income) loss attributable to noncontrolling interests	(594)	(552)	(1,982)	(1,689)
Net income (loss) attributable to Groupon, Inc.	$ 13,928	$ (41,358)	$ (8,378)	$ (83,112)
Net income (loss) per share:
Basic net income (loss) per share (in usd per share)	$ 0.35	$ (1.31)	$ (0.22)	$ (2.68)
Diluted net income (loss) per share (in usd per share)	$ 0.33	$ (1.31)	$ (0.22)	$ (2.68)
Weighted average number of shares outstanding:
Basic weighted average number of shares outstanding (in shares)	39,748,268	31,500,489	38,966,238	31,039,668
Diluted weighted average number of shares outstanding (in shares)	45,014,446	31,500,489	38,966,238	31,039,668
Comprehensive income (loss):
Net income (loss)	$ 14,522	$ (40,806)	$ (6,396)	$ (81,423)
Other comprehensive income (loss):
Net change in unrealized gain (loss) on foreign currency translation adjustments	(23,092)	11,141	(6,138)	11,038
Comprehensive income (loss)	(8,570)	(29,665)	(12,534)	(70,385)
Comprehensive (income) loss attributable to noncontrolling interest	(594)	(552)	(1,982)	(1,689)
Comprehensive income (loss) attributable to Groupon, Inc.	$ (9,164)	$ (30,217)	$ (14,516)	$ (72,074)