Accumulated Other Comprehensive Income (Loss) - Summary of Components of AOCI (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	$ (1,056)
Other comprehensive income (loss)	100	$ (900)	$ 1,800
Income tax (expense) benefit			(500)
Other comprehensive income (loss), net of tax	79	(925)	1,281
Balance, Ending	(977)	(1,056)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(1,400)	(500)	(400)
Other comprehensive income (loss)	200	(900)	(100)
Other comprehensive income (loss), net of tax	200	(900)	(100)
Balance, Ending	(1,200)	(1,400)	(500)
Marketable Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	400	400	(1,000)
Other comprehensive income (loss)	(100)		1,900
Income tax (expense) benefit			(500)
Other comprehensive income (loss), net of tax	(100)		1,400
Balance, Ending	300	400	400
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, Beginning	(1,000)	(100)	(1,400)
Balance, Ending	$ (900)	$ (1,000)	$ (100)