CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total Sequential Brands Group, Inc. and Subsidiaries Stockholders' Equity Interest Rate Cap [Member]	Total Sequential Brands Group, Inc. and Subsidiaries Stockholders' Equity Interest Rate Swap [Member]	Total Sequential Brands Group, Inc. and Subsidiaries Stockholders' Equity	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member] Interest Rate Cap [Member]	Accumulated Other Comprehensive Loss [Member] Interest Rate Swap [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Interest Rate Cap [Member]	Interest Rate Swap [Member]	Total
Balance at Dec. 31, 2016			$ 462,755	$ 624	$ 502,564			$ (144)	$ (39,651)	$ (638)	$ 74,813			$ 537,568
Balance (in shares) at Dec. 31, 2016				62,602,041						(97,686)
Stock-based compensation			5,911	$ 11	5,900									5,911
Stock-based compensation (in shares)				1,050,680
Unrealized gain (loss) on interest rate, net of tax	$ 224					$ 224						$ 224
Stock registration costs			(20)		(20)									(20)
Repurchase of common stock			(1,161)							$ (1,161)				(1,161)
Repurchase of common stock (in shares)										(327,308)
Noncontrolling interest distribution											(7,438)			(7,438)
Net income (loss) attributable to noncontrolling interest											4,172			4,172
Net income (loss) attributable to common stockholders			(185,718)						(185,718)					(185,718)
Balance at Dec. 31, 2017			281,991	$ 635	508,444			80	(225,369)	$ (1,799)	71,547			353,538
Balance (in shares) at Dec. 31, 2017				63,652,721						(424,994)
Stock-based compensation			3,842	$ 14	3,828									3,842
Stock-based compensation (in shares)				1,493,972
Shares issued under stock incentive plan			1,500	$ 8	1,492									1,500
Shares issued under stock incentive plan (in shares)				843,486
Unrealized gain on equity securities during the year														1,554
Unrealized gain (loss) on interest rate, net of tax	$ (80)	$ (1,554)				$ (80)	$ (1,554)					$ (80)	$ (1,554)
Repurchase of common stock			(2,427)							$ (2,427)				(2,427)
Repurchase of common stock (in shares)										(1,237,603)
Noncontrolling interest distribution											(6,682)			(6,682)
Net income (loss) attributable to noncontrolling interest											5,506			5,506
Net income (loss) attributable to common stockholders			(10,484)						(10,484)					(10,484)
Balance at Dec. 31, 2018			273,918	$ 657	513,764			(1,554)	(234,723)	$ (4,226)	70,726			344,644
Balance (in shares) at Dec. 31, 2018				65,990,179						(1,662,597)
Cumulative effect of revenue recognition accounting change			1,130						1,130		355			1,485
Stock-based compensation			2,015	$ 15	2,000									2,015
Stock-based compensation (in shares)				887,315
Shares issued from treasury stock					(1,268)					$ 1,268
Shares issued from treasury stock (in shares)										864,576
Unrealized gain (loss) on interest rate, net of tax		$ (2,542)					$ (2,542)						$ (2,542)
Repurchase of common stock			(272)							$ (272)				(272)
Repurchase of common stock (in shares)										(298,735)
Noncontrolling interest distribution											(5,366)			(5,366)
Net income (loss) attributable to noncontrolling interest											(6,036)			(6,036)
Net income (loss) attributable to common stockholders			(159,403)						(159,403)					(159,403)
Balance at Dec. 31, 2019			$ 113,716	$ 672	$ 514,496			$ (4,096)	$ (394,126)	$ (3,230)	$ 59,324			$ 173,040
Balance (in shares) at Dec. 31, 2019				66,877,494						(1,096,756)