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Other Liabilities - Schedule of Other Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Other Current Liabilities:    
Product warranties $ 7,013 $ 6,956
Deferred revenue 6,353 5,556
Other 23,076 21,730
Total other current liabilities 36,442 34,242
Other Liabilities:    
Long-term income tax payable 43,713 46,745
Accrued compensation 10,690 9,646
Other 6,379 6,682
Total other liabilities $ 60,782 $ 63,073