Income Taxes - Changes in Valuation Allowance for Deferred Tax Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets Valuation Allowance [Roll Forward]
Balance at beginning of year	$ 16,801	$ 67,735	$ 43,824
Increase (decrease) in valuation allowance—future year utilization	0	2,105	18,136
Increase (decrease) in valuation allowance—current year utilization and expiration	(16,599)	(53,039)	5,047
Increase (decrease) in valuation allowance—other	0	0	728
Balance at end of year	$ 202	$ 16,801	$ 67,735