Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net loss from continuing operations	$ (45,596)	$ (16,739)
Other comprehensive (loss) income, net of tax:
Reclassification of amount included in net income (loss) from continuing operations	1,500
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	27	26
Comprehensive loss	(48,448)	(2,002)
Net loss from discontinued operations	0	6,284
Other comprehensive income (loss) from discontinued operations - Foreign currency translation adjustments	0	(2,417)
Comprehensive income attributable to noncontrolling interests	(3,523)	(3,818)
Comprehensive loss attributable to Groupon Inc.	(51,971)	(5,820)
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	(116)	137
Continuing Operations [Member]
Other comprehensive (loss) income, net of tax:
Net unrealized gain (losses) during the period	(4,225)	10,707
Reclassification of amount included in net income (loss) from continuing operations	1,462	0
Net change in unrealized gain (loss) - Foreign Currency Translation	(2,763)	10,707
Other comprehensive income	(2,852)	10,870
Comprehensive loss	(48,448)	(5,869)
Discontinued Operations, Disposed of by Sale [Member]
Other comprehensive (loss) income, net of tax:
Other comprehensive income	$ 0	$ 3,867