Investments - Portion of Net Unrealized Gains (Losses) Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity securities:
Net gains (losses) recognized during the period	$ 4,848	$ 871	$ (13,238)
Less: net gains (losses) recognized on securities sold	1,213	(2,328)	(1,866)
Net unrealized gains (losses) recognized on securities held at reporting date	$ 3,635	$ 3,199	$ (11,372)