Income Taxes - Summary of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, beginning of year	$ 263	$ 84
Additions based on tax positions relating to current year	495	242
Addtitions based on tax positions relating to prior year	0	0
Reductions for positions of prior years	0	(63)
Unrecognized tax benefits, end of year	$ 758	$ 263