Balance Sheet Components - Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Payroll and employee-related cost		$ 52,687	$ 50,083
Accrued expenses		11,103	9,246
Sales return provision		1,730	9,812
Product warranty		3,495	2,896
Other acquisition-related costs		3,000	3,000
Other accrued liabilities		14,488	10,758
Total accrued liabilities	$ 86,503	$ 86,503	$ 85,795