Related Party Transactions - Summary of Royalty Revenue Recognized (Parenthetical) (Detail) - USD ($)		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Related Party Transaction [Line Items]
Royalty revenue		$ 7,458,000	$ 5,304,000
Licensing revenue		48,548,000	58,722,000
Peanuts Holdings, LLC
Related Party Transaction [Line Items]
Royalty revenue		0
Peanuts Holdings, LLC | Maximum
Related Party Transaction [Line Items]
Royalty revenue			100,000
Global Brands Group Asia Limited
Related Party Transaction [Line Items]
Royalty revenue	[1]	5,629,000	3,238,000
Earned fees			800,000
Licensing revenue		$ 5,200,000	$ 2,500,000

[1] Royalty revenue of less than $0.1 million for the Prior Year Quarter as compared to none during the Current Quarter was included in the amounts presented in the table above, related to royalty revenue associated with Peanuts Worldwide which has been reclassified in to income from discontinued operations on the Company’s condensed consolidated statement of operations. Additionally, Global Brands Group Asia Limited also served as agent to Peanuts Worldwide in respect of the Greater China Territory for Peanuts brands. As of June 30, 2017, due to the completion of the sale of the Entertainment segment, Global Brands Group Asia Limited is no longer a related party in its capacity as agent of Peanuts Worldwide. For the Prior Year Quarter, Global Brands Group Asia Limited earned fees of approximately $0.8 million in its capacity as agent to Peanuts Worldwide, which have been recorded within discontinued operations in the Company’s condensed consolidated statement of operations.