CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net revenue	$ 36,913	$ 38,104
Operating expenses	22,770	18,050
Impairment charges	161,224
Loss on sale of assets		5,142
(Loss) income from operations	(147,081)	14,912
Other income	300	135
Interest expense, net	15,654	15,392
Loss before income taxes	(162,435)	(345)
Benefit from income taxes	(38,629)	(41)
Net loss	(123,806)	(304)
Net income attributable to noncontrolling interests	(1,539)	(1,960)
Net loss attributable to Sequential Brands Group, Inc. and Subsidiaries	$ (125,345)	$ (2,264)
Loss per share attributable to Sequential Brands Group, Inc. and Subsidiaries:
Basic and diluted (in dollars per share)	$ (1.95)	$ (0.04)
Weighted-average common shares outstanding:
Basic and diluted ( in shares)	64,221,687	63,232,138