Balance Sheet Components - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Balance Sheet Components [Abstract]
Accrued payroll related costs	$ 22,173	$ 39,479
Accrued warranty costs	4,883	4,718	$ 3,686	$ 3,204
Accrued manufacturing costs	6,094	6,397
Accrued professional fees	5,573	4,875
Accrued taxes	1,265	1,347
Other	6,125	4,155
Total accrued liabilities	$ 46,113	$ 60,971