Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (954)	$ 16,382	$ 87,046	$ 96,364
Other comprehensive income (loss):
Foreign currency translation gain (loss)	4,051	(24,905)	(26,560)	(28,348)
Change in fair value of available for sale securities	(948)		(650)
Total other comprehensive income (loss)	3,103	(24,905)	(27,210)	(28,348)
Comprehensive income (loss)	2,149	(8,523)	59,836	68,016
Less: comprehensive income attributable to non-controlling interest	4,433	3,527	13,335	10,165
Comprehensive (loss) income attributable to Iconix Brand Group, Inc.	$ (2,284)	$ (12,050)	$ 46,501	$ 57,851