Income Taxes - Component of Income Taxes Expenses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Components of income tax expense (benefit):
Currently payable	$ 500
Deferred income tax expense (benefit)	(2,300)	$ (7,500)	$ 2,500
Income tax expense	$ 2,785	$ 7,479	$ (2,515)