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Balance Sheet Details - Summary of Accrued Expenses (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Payables And Accruals [Abstract]        
Royalties $ 3,411 $ 4,243    
Payroll and related expenses 4,173 4,828    
Product warranty 1,367 2,244 2,664 2,329
Market development funds and price protection 3,287 3,059    
Professional fees 1,533 1,040    
Deferred revenue 2,602 2,999    
Restructuring 775 610    
Other 3,993 4,248    
Accrued expenses, Total $ 21,141 $ 23,271