Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net loss from continuing operations	$ (51,731)	$ (15,267)	$ (97,327)	$ (32,006)
Other comprehensive (loss) income, net of tax:
Reclassification of amount included in net income (loss) from continuing operations	(1,800)		(300)	4,400
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	19	27	46	53
Comprehensive loss	(60,793)	123,384	(109,241)	121,382
Net loss from discontinued operations	0	127,179	0	133,463
Comprehensive income attributable to noncontrolling interests	(3,173)	(2,828)	(6,696)	(6,646)
Comprehensive loss attributable to Groupon Inc.	(63,966)	120,556	(115,937)	114,736
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other comprehensive (loss) income, net of tax:
Net change in unrealized gain (loss), net, on AFS	(52)	39	(168)	176
Continuing Operations [Member]
Other comprehensive (loss) income, net of tax:
Net unrealized gain (losses) during the period	430	(3,376)	(3,795)	7,331
Reclassification of amount included in net income (loss) from continuing operations	(9,459)	4,401	(7,997)	4,401
Net change in unrealized gain (loss) - Foreign Currency Translation	(9,029)	1,025	(11,792)	11,732
Other comprehensive income	(9,062)	1,091	(11,914)	11,961
Comprehensive loss	(60,793)	(14,176)	(109,241)	(20,045)
Discontinued Operations, Disposed of by Sale [Member]
Other comprehensive (loss) income, net of tax:
Net unrealized gain (losses) during the period	0	(1,932)	0	(4,349)
Reclassification of amount included in net income (loss) from continuing operations	0	12,313	0	12,313
Net change in unrealized gain (loss) - Foreign Currency Translation	0	10,381	0	7,964
Other comprehensive income	$ 0	$ 137,560	$ 0	$ 141,427