Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 02, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Entity Registrant Name	Sequential Brands Group, Inc.
Entity Current Reporting Status	Yes
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		65,404,888
Entity Central Index Key	0001648428
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false