Certain Balance Sheet Components - Summary of the Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 3,064	$ 6,331	$ 3,957
Provision for (release of) doubtful accounts, net	(299)	(1,511)	3,874
Accounts written-off	(1,463)	(1,749)	(1,281)
Effect of change in exchange rates	10	(7)	(219)
Ending balance	$ 1,312	$ 3,064	$ 6,331