CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($)	Total Sequential Brands Group, Inc. and Subsidiaries Stockholders' Equity	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Treasury stock						$ (1,799,000)		$ (1,799,000)
Treasury stock, shares						(424,994)		(424,994)
Balance at Dec. 31, 2017	$ 281,991,000	$ 635,000	$ 508,444,000	$ 80,000	$ (225,369,000)		$ 71,547,000	$ 353,538,000
Balance (in shares) at Dec. 31, 2017		63,652,721
Stock-based compensation	3,516,000	$ 13,000	3,503,000					3,516,000
Stock-based compensation (in shares)		1,438,345
Shares issued under stock incentive plan	1,500,000	$ 8,000	1,492,000					1,500,000
Shares issued under stock incentive plan (in shares)		843,486
Unrealized gain on interest rate cap	130,000			130,000				130,000
Repurchase of common stock	(2,418,000)					$ (2,418,000)		(2,418,000)
Repurchase of common stock (in shares)						(1,232,223)
Noncontrolling interest distribution							(5,325,000)	(5,325,000)
Net income attributable to noncontrolling interests							4,643,000	4,643,000
Net income attributable to common stockholders	(8,292,000)				(8,292,000)			(8,292,000)
Unrealized loss on available-for-sale securities	(277,000)			(277,000)				(277,000)
Balance at Sep. 30, 2018	277,280,000	$ 656,000	$ 513,439,000	$ (67,000)	(232,531,000)		71,220,000	348,500,000
Balance (in shares) at Sep. 30, 2018		65,934,552
Cumulative effect of revenue recognition accounting change	$ 1,130,000				$ 1,130,000		$ 355,000	1,485,000
Treasury stock						$ (4,217,000)		$ (4,217,000)
Treasury stock, shares						(1,657,217)		(1,657,217)