Summary of Net Deferred Tax Assets Valuation Allowance (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 62,441	$ 62,699	$ 62,492
Increases in valuation allowance		459	1,142
Decreases in valuation allowance	(2,445)	(717)	(935)
Balance at end of period	$ 59,996	$ 62,441	$ 62,699