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Other Liabilities - Schedule of Other Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Other Current Liabilities:    
Product warranties $ 7,533 $ 8,266
Deferred revenue 7,143 9,280
Other 19,366 19,859
Total other current liabilities 34,042 37,405
Other Liabilities:    
Long-term income tax payable 21,123 20,880
Accrued compensation 19,620 18,750
Other 4,870 3,745
Total other liabilities $ 45,613 $ 43,375