Federal Income Tax - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Computed expected income tax expense (benefit)	$ 20,337	$ (35,598)	$ 3,544
The CARES Act	0	(18,562)	0
Tax-exempt municipal bond interest income	(3,412)	(3,669)	(3,961)
Nontaxable dividend income	(361)	(517)	(594)
Goodwill impairment	0	3,169	0
Compensation	770	695	1,638
Reinsurance		0	998
Research and development credit	(1,545)	(2,045)	0
Other, net	460	(282)	434
Consolidated federal income tax expense (benefit)	$ 16,249	$ (56,809)	$ 2,059

Effective Income Tax Rate Reconciliation, Cares Act, Amount

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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