Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investments:
Fixed maturities available-for-sale, cost	$ 1,374,777	$ 1,343,755
Limited partnership	62,454	56,038
Due premiums, allowance for doubtful accounts	$ 344	$ 111
Liabilities and Stockholders' Equity
Common stock, shares issued (in shares)	4,753,000	4,138,000
Common Stock Class A [Member]
Liabilities and Stockholders' Equity
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	53,756,692	53,170,413
Common stock, shares outstanding (in shares)	53,756,692	53,170,413
Common stock, shares issued (in shares)	3,751,396	3,135,738
Common Stock Class B [Member]
Liabilities and Stockholders' Equity
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, shares issued (in shares)	1,001,714	1,001,714
Common stock, shares outstanding (in shares)	1,001,714	1,001,714
Common stock, shares issued (in shares)	1,001,714	1,001,714