Investments Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Components of Net Investment Income [Abstract]
Taxable bonds	$ 20,924	$ 9,179	$ 39,028	$ 16,974
Tax exempt municipal bonds	546	852	1,182	1,709
Cash equivalents and short-term investments	866	104	1,579	123
Dividends on equity securities	1,278	1,093	2,421	2,123
Real estate investment income	1,356	0	2,714	0
Gross investment income	24,970	11,228	46,924	20,929
Investment expenses	(798)	(634)	(2,057)	(1,247)
Net investment income	$ 24,172	$ 10,594	$ 44,867	$ 19,682

Real estate investment income

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Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts.

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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.

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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.

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Amount of dividend income on nonoperating securities.

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Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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Amount of expenses related to the generation of investment income.

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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