Balance Sheet Components - Activities of Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Beginning Balance	$ 10,677	$ 13,026	$ 15,950
Provision for doubtful accounts	10,016	5,069	8,459
Net write-offs	(8,295)	(10,050)	(11,341)
Impact of foreign currency exchange	(763)	1,732	(42)
Ending Balance	$ 11,635	10,677	$ 13,026
Adjustment from adoption of new accounting standard
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to adoption of ASU 2016-13		$ 900