Balance Sheet Components - Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance Sheet Components [Abstract]
Accounts receivable	$ 254,640	$ 145,792
Allowance for doubtful accounts	(204)	(963)
Product sales return reserve	(1,317)	(566)	$ (2,031)	$ (1,529)
Accounts receivable, net	$ 253,119	$ 144,263