Investments - Net Investment Income and Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Investment Income [Line Items]
Investment income	$ 1,556	$ 1,414	$ 3,169	$ 2,781
Investment expenses	(51)	(60)	(112)	(120)
Net investment income	1,505	1,354	3,057	2,661
Debt securities
Net Investment Income [Line Items]
Investment income	1,196	1,026	2,421	1,879
Equity securities
Net Investment Income [Line Items]
Investment income	12	7	23	18
Cash, cash equivalents and short-term investments
Net Investment Income [Line Items]
Investment income	$ 348	$ 381	$ 725	$ 884

Amount, before 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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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