Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Valuation allowance	$ 934	$ 934
Income tax expense (benefit)	(64)	1,736
Deferred tax asset net of valuation allowance	3,801	$ 3,369
Charitable contribution carryforward [Member]
Federal Loss Carryforwards	$ 419,000
Expiration Period	2024 years
Retained Earnings	$ 416,000
Domestic Tax Authority [Member]
Federal Loss Carryforwards	$ 9,700
Expiration Period	2030 years
Operating Loss Carryforwards, Not Subject to Expiration			$ 1,800
Operating Loss Carryforwards, Subject to Expiration			$ 7,900
State and Local Jurisdiction [Member]
Federal Loss Carryforwards	$ 19,900
Expiration Period	2024 years