Investments - Investment Income, Realized and Unrealized Gains and Losses on Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments [Abstract]
Investment income, net of investment expenses	$ 13,516	$ 8,428	$ 1,544
Realized gains on investments	417	113	22
Realized losses on investments	(236)	(256)	(392)
Investment income and realized gains and losses, net of investment expenses	$ 13,697	$ 8,285	$ 1,174