The Company and Significant Accounting Policies - Summary of Components of AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	$ (977)
Other comprehensive income (loss)	(400)
Income tax (expense) benefit	100
Total other comprehensive income (loss)	(283)	$ 338
Balance, Ending	(1,260)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(1,200)
Balance, Ending	(1,200)
Marketable Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	300
Other comprehensive income (loss)	(400)
Income tax (expense) benefit	100
Total other comprehensive income (loss)	(300)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(900)
Balance, Ending	$ (1,200)