Investments - Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Investment income from portfolios
Total investment income	$ 7,540	$ 8,801	$ 23,844	$ 25,857
Less: investment expenses	510	149	1,072	658
Investment income, net of expenses	7,030	8,652	22,772	25,199
Available-for-sale securities
Investment income from portfolios
Total investment income	5,353	5,449	16,811	17,098
Equity securities
Investment income from portfolios
Total investment income	1,178	452	2,935	734
Cash equivalents and other
Investment income from portfolios
Total investment income	$ 1,009	$ 2,900	$ 4,098	$ 8,025

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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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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