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	$ (2,973)	$ 37,117	$ 83,166	$ 134,534
Other comprehensive income (loss):
Foreign currency translation gain (loss)	4,050	(26,524)	(27,066)	(29,144)
Change in fair value of available for sale securities		50	299	50
Total other comprehensive income (loss)	4,050	(26,474)	(26,767)	(29,094)
Comprehensive income	1,077	10,643	56,399	105,440
Less: comprehensive income attributable to non-controlling interest	3,367	3,433	11,037	9,970
Comprehensive (loss) income attributable to Iconix Brand Group, Inc.	$ (2,290)	$ 7,210	$ 45,362	$ 95,470