Investments - Components of Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Components of net investment income
Interest on fixed maturity securities	$ 9,105	$ 9,682
Dividends on equity securities	1,320	1,239
Equity in earnings of other invested assets	1,016	1,422
Interest on other assets	7	6
Total investment income	11,448	12,349
Investment expenses	858	817
Net investment income	$ 10,590	$ 11,532

Amount of operating dividend income on securities.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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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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