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Goodwill and Intangible Assets - Intangible Assets by Major Asset Class (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Intangible Assets By Major Class [Line Items]      
Gross $ 128,132   $ 128,132
Accumulated Amortization 39,363   39,350
Net Book Value 88,769   88,782
Aggregate amortization expense on intangible assets 13 $ 13  
Trade name, trademark and trade dress and other      
Intangible Assets By Major Class [Line Items]      
Gross 88,590   88,590
Net Book Value 88,590   88,590
Patents      
Intangible Assets By Major Class [Line Items]      
Gross 31,581   31,581
Accumulated Amortization 31,402   31,389
Net Book Value $ 179   192
Patents | Minimum      
Intangible Assets By Major Class [Line Items]      
Useful Life (years) 2 years    
Patents | Maximum      
Intangible Assets By Major Class [Line Items]      
Useful Life (years) 16 years    
Developed technology and other      
Intangible Assets By Major Class [Line Items]      
Gross $ 7,961   7,961
Accumulated Amortization 7,961   7,961
Net Book Value $ 0   $ 0
Developed technology and other | Minimum      
Intangible Assets By Major Class [Line Items]      
Useful Life (years) 1 year    
Developed technology and other | Maximum      
Intangible Assets By Major Class [Line Items]      
Useful Life (years) 9 years