Investments - Portion of Net Unrealized Gains (Losses) Recognized During the Reporting Period (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity securities:
Net gains (losses) recognized during the period	$ 580	$ 359	$ 2,695	$ (3,304)
Less: net gains (losses) recognized on securities sold	116	(78)	330	(2,704)
Net unrealized gains (losses) recognized on securities held at reporting date	$ 464	$ 437	$ 2,365	$ (600)