CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	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
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
Stock-based compensation	726	$ 5	721					726
Stock-based compensation (in shares)		457,734
Unrealized gain (loss) on interest rate, net of tax	(1,480)			(1,480)				(1,480)
Repurchase of common stock	(170)					$ (170)		(170)
Repurchase of common stock (in shares)						(134,839)
Noncontrolling interest distribution							(1,093)	(1,093)
Net income attributable to noncontrolling interest							1,539	1,539
Net loss attributable to common stockholders	(125,345)				(125,345)			(125,345)
Balance at Mar. 31, 2019	147,649	$ 662	514,485	(3,034)	(360,068)	$ (4,396)	71,172	218,821
Balance (in shares) at Mar. 31, 2019		66,447,913				1,797,436
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)
Stock-based compensation	231	$ 2	229					231
Stock-based compensation (in shares)		200,000
Shares issued from treasury stock			(6)			$ 6
Shares issued from treasury stock (in shares)						23,063
Unrealized gain (loss) on interest rate, net of tax	(721)			(721)				(721)
Repurchase of common stock	(36)					$ (36)		(36)
Repurchase of common stock (in shares)						(97,901)
Noncontrolling interest distribution							(2,016)	(2,016)
Net income attributable to noncontrolling interest							(12,006)	(12,006)
Net loss attributable to common stockholders	(86,613)				(86,613)			(86,613)
Balance at Mar. 31, 2020	$ 26,577	$ 674	$ 514,719	$ (4,817)	$ (480,739)	$ (3,260)	$ 45,302	$ 71,879
Balance (in shares) at Mar. 31, 2020		67,077,494				(1,171,594)