Balance Sheet Components - Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Accrued payroll and benefits	$ 55,430	$ 44,610
Accrued sales rebate	8,486	11,110
Accrued sales tax and value added tax	4,801	5,456
Accrued sales and marketing expenses	7,071	5,979
Accrued warranty	2,638	3,148
Accrued accounts payable	13,834	5,736
Accrued professional fees	2,775	2,494
Accrued income taxes	2,646	2,027
Other	10,084	7,320
Total current accrued liabilities	$ 107,765	$ 87,880