CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Total revenue	$ 599,085,000	$ 967,108,000	$ 1,416,868,000
Cost of revenue:
Cost of revenue	76,261,000	229,992,000	739,574,000
Gross profit	522,824,000	737,116,000	677,294,000
Operating expenses:
Marketing	149,231,000	188,780,000	154,534,000
Selling, general and administrative	481,375,000	511,096,000	603,185,000
Goodwill impairment	35,424,000	0	109,486,000
Long-lived asset impairment	12,259,000	0	22,351,000
Restructuring and related charges	12,350,000	41,895,000	64,836,000
Total operating expenses	690,639,000	741,771,000	954,392,000
Income (loss) from operations	(167,815,000)	(4,655,000)	(277,098,000)
Other income (expense), net	(24,155,000)	92,680,000	(16,968,000)
Income (loss) from continuing operations before provision (benefit) for income taxes	(191,970,000)	88,025,000	(294,066,000)
Provision (benefit) for income taxes	42,410,000	(32,323,000)	(7,504,000)
Income (loss) from continuing operations	(234,380,000)	120,348,000	(286,562,000)
Income (loss) from discontinued operations, net of tax	0	0	382,000
Net income (loss)	(234,380,000)	120,348,000	(286,180,000)
Net (income) loss attributable to noncontrolling interests	(3,229,000)	(1,680,000)	(1,751,000)
Net income (loss) attributable to Groupon, Inc.	$ (237,609,000)	$ 118,668,000	$ (287,931,000)
Basic net income (loss) per share:
Continuing operations (in usd per share)	$ (7.88)	$ 4.04	$ (10.08)
Discontinued operations (in usd per share)	0	0	0.01
Basic net income (loss) per share (in usd per share)	(7.88)	4.04	(10.07)
Diluted net income (loss) per share:
Continuing operations (in usd per share)	(7.88)	3.68	(10.08)
Discontinued operations (in usd per share)	0	0	0.01
Diluted net income (loss) per share (in usd per share)	$ (7.88)	$ 3.68	$ (10.07)
Weighted average number of shares outstanding:
Basic (in shares)	30,166,100	29,365,880	28,604,115
Diluted (in shares)	30,166,100	33,513,440	28,604,115
Service
Revenue:
Total revenue	$ 599,085,000	$ 794,795,000	$ 643,653,000
Cost of revenue:
Cost of revenue	76,261,000	82,020,000	79,296,000
Product
Revenue:
Total revenue	0	172,313,000	773,215,000
Cost of revenue:
Cost of revenue	$ 0	$ 147,972,000	$ 660,278,000