CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss from continuing operations	$ (40,376)	$ (11,962)	$ (286,161)
Other comprehensive (loss) income:
Unrealized (loss) gain on interest rate caps		(80)	224
Unrealized loss on interest rate swaps	(5,628)	(1,554)
Other comprehensive (loss) income	(5,628)	(1,634)	224
Comprehensive income	(46,004)	(13,596)	(285,937)
Comprehensive loss (income) from continuing operations attributable to noncontrolling interests	6,036	(5,506)	(4,172)
Comprehensive loss from continuing operations attributable to Sequential Brands Group, Inc. and Subsidiaries	(39,968)	(19,102)	(290,109)
(Loss) income from discontinued operations, net of income taxes	(125,063)	6,984	104,615
Comprehensive loss attributable to Sequential Brands Group, Inc. and Subsidiaries	$ (165,031)	$ (12,118)	$ (185,494)