Income Tax - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Currently Payable:
Federal	$ 24,634	$ 28,463	$ 23,938
State	1,473	2,647	422
Deferred:
Federal	7,211	(8,508)	4,726
State	1,941	(1,227)	239
Income Tax Expense	$ 35,259	$ 21,375	$ 29,325