Schedule of Other Revenue (Parenthetical) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue [Line Items]
Net gain on sale intangible asset	$ 54,303,000	$ 34,579,000	$ 12,133,000
OP Japan
Revenue [Line Items]
Gain on sale of interest in subsidiary			6,500,000
Trademarks | Sharper Image
Revenue [Line Items]
Net gain on sale intangible asset	7,800,000
Korea | Trademarks | Umbro
Revenue [Line Items]
Gain on sale of interest in subsidiary		$ 10,000,000