Goodwill and Trademarks and Other Intangibles, net - Additional Information (Detail)	1 Months Ended				3 Months Ended				12 Months Ended
	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2015 USD ($)	Feb. 28, 2015 USD ($)	Dec. 31, 2016 USD ($) Segment	Dec. 31, 2015 USD ($)	Jun. 30, 2015 Segment	Mar. 31, 2015 USD ($) Segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Intangible Assets by Major Class [Line Items]
Number of reportable segments | Segment					5		5	1
Non-cash impairment charge					$ 18,300,000	$ 35,100,000			$ 18,331,000	$ 35,132,000	$ 0
Impairment of intangible assets, indefinite-lived					424,900,000	402,400,000			424,890,000	402,392,000	0
Impairment of intangible assets, finite-lived									0	0	0
Amortization expense for intangible assets									1,727,000	$ 3,088,000	$ 4,530,000
Projects amortization expenses, 2017	$ 800,000				800,000				800,000
Projects amortization expenses, 2018	300,000				300,000				300,000
Projects amortization expenses, 2019	100,000				100,000				100,000
Projects amortization expenses, 2020	0				0				0
Projects amortization expenses, 2021	0				0				$ 0
Minimum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									1 year
Minimum | Non-compete agreements and contracts
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									1 year
Residual value	0				0				$ 0
Maximum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									15 years
Maximum | Non-compete agreements and contracts
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									15 years
Residual value	0				0				$ 0
Trademarks
Intangible Assets by Major Class [Line Items]
Residual value	0				0				$ 0
Trademarks | Sharper Image intellectual property and related assets
Intangible Assets by Major Class [Line Items]
Increase (Decrease) in indefinite-lived trademarks	(55,600,000)
Trademarks | London Fog Korea trademark
Intangible Assets by Major Class [Line Items]
Increase (Decrease) in indefinite-lived trademarks		$ (400,000)
Trademarks | Minimum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									10 years
Residual value	0				0				$ 0
Trademarks | Maximum
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, useful life									15 years
Residual value	0				0				$ 0
Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					424,900,000	$ 402,400,000
PONY Brand
Intangible Assets by Major Class [Line Items]
Purchase price allocation goodwill amount				$ 14,700,000
Strawberry Shortcake Brand
Intangible Assets by Major Class [Line Items]
Purchase price allocation goodwill amount			$ 35,400,000					$ 35,400,000
Iconix China
Intangible Assets by Major Class [Line Items]
Purchase price allocation goodwill amount	9,600,000		$ 9,600,000		9,600,000			$ 9,600,000	9,600,000
Controlling interest			50.00%					50.00%
Interest acquired, including previously acquired interest			100.00%			100.00%		100.00%		100.00%
Iconix China | Trademarks
Intangible Assets by Major Class [Line Items]
Increase in value of indefinite-lived intangible assets			$ 40,500,000
Strawberry Shortcake
Intangible Assets by Major Class [Line Items]
Purchase price allocation goodwill amount						$ 35,400,000				$ 35,400,000
Increase in value of indefinite-lived trademarks and licensing contracts			$ 56,200,000
Pony International, LLC.
Intangible Assets by Major Class [Line Items]
Purchase price allocation goodwill amount						14,700,000				14,700,000
Controlling interest				75.00%
Increase in value of indefinite-lived trademarks and licensing contracts				$ 32,600,000
Non-controlling interest				25.00%
Home
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge					0	0
Home | Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					50,000,000	37,800,000
Men's
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge					18,300,000
Men's | Operating Segments
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge									18,331,000	32,017,000
Men's | Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					144,600,000	327,800,000
Women's
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge					0	0
Women's | Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					31,500,000	2,200,000
Entertainment
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge					0	0
Entertainment | Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					5,100,000
International
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge					0
International | Operating Segments
Intangible Assets by Major Class [Line Items]
Non-cash impairment charge										$ 3,115,000
International | Operating Segments | Trademarks
Intangible Assets by Major Class [Line Items]
Impairment of intangible assets, indefinite-lived					193,700,000	$ 34,600,000
Sharper Image Brand | Home
Intangible Assets by Major Class [Line Items]
Goodwill	$ 14,500,000				$ 14,500,000				$ 14,500,000