Investments - Components of Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Components of net investment income
Interest on fixed maturity securities	$ 12,948	$ 11,744
Dividends on equity securities	1,667	1,610
Equity in earnings of other invested assets	1,407	1,086
Interest on other assets	82	31
Total Investment Income	16,104	14,471
Investment expenses	873	817
Net investment income	$ 15,231	$ 13,654