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Other Liabilities - Schedule of Other Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Other Current Liabilities:    
Product warranties $ 7,175 $ 8,266
Deferred revenue 6,318 9,280
Other 19,204 19,859
Total other current liabilities 32,697 37,405
Other Liabilities:    
Long-term income tax payable 21,683 20,880
Accrued compensation 20,109 18,750
Other 4,901 3,745
Total other liabilities $ 46,693 $ 43,375