The Company and Significant Accounting Policies - Summary of Components of AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning		$ (977)		$ (977)
Other comprehensive income (loss)	$ (1,721)	(380)
Income tax (expense) benefit	428	97
Total other comprehensive income (loss)	(1,293)	(283)	$ (310)	(1,576)	$ 28
Balance, Ending	(2,553)			(2,553)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(1,300)	(1,300)		(1,300)
Other comprehensive income (loss)	(43)
Total other comprehensive income (loss)	(43)
Balance, Ending	(1,343)	(1,300)		(1,343)
Marketable Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	40	323		323
Other comprehensive income (loss)	(1,678)	(380)
Income tax (expense) benefit	428	97
Total other comprehensive income (loss)	(1,250)	(283)
Balance, Ending	(1,210)	40		(1,210)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(1,260)	(977)		(977)
Balance, Ending	$ (2,553)	$ (1,260)		$ (2,553)