Investments Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Components of Net Investment Income [Abstract]
Taxable bonds	$ 4,050	$ 2,548	$ 10,593	$ 6,548
Tax exempt municipal bonds	887	1,068	2,783	3,236
Cash equivalents and short-term investments	266	327	667	804
Dividends on equity securities	406	445	1,493	1,369
Gross investment income	5,609	4,388	15,536	11,957
Investment expenses	(344)	(303)	(950)	(861)
Net investment income	$ 5,265	$ 4,085	$ 14,586	$ 11,096

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 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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