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Estimated Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]    
2014 $ 10,997  
2015 8,758  
2016 7,018  
2017 6,296  
2018 4,533  
Thereafter 14,664  
Amortizable intangible assets, net carrying amount 52,266 26,993
Cost of Sales
   
Finite-Lived Intangible Assets [Line Items]    
2014 4,953  
2015 3,310  
2016 1,965  
2017 1,573  
2018 146  
Thereafter 226  
Amortizable intangible assets, net carrying amount 12,173  
Operating Expense
   
Finite-Lived Intangible Assets [Line Items]    
2014 6,044  
2015 5,448  
2016 5,053  
2017 4,723  
2018 4,387  
Thereafter 14,438  
Amortizable intangible assets, net carrying amount $ 40,093