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Balance Sheet Details - Summary of Accrued Warranty Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Guarantees [Abstract]        
Warranty liability at beginning of period $ 1,367 $ 2,664 $ 2,244 $ 2,329
Additions charged to operations 794 1,708 1,199 3,363
Deductions from/use of liability (581) (1,921) (1,863) (3,241)
Warranty liability at end of period $ 1,580 $ 2,451 $ 1,580 $ 2,451