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Net Sales and Long-Lived Assets by Major Geographic Locations (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 486,842 $ 444,418 $ 443,171
Long-lived assets 136,038 119,948  
UNITED STATES
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 430,758 426,405  
Long-lived assets 133,841 118,803  
International
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 56,084 18,013  
Long-lived assets $ 2,197 $ 1,145