Investments - Portion of Net Unrealized Gains (Losses) Recognized During the Reporting Period (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Equity securities:
Net gains recognized during the period	$ 760	$ 2,782	$ 2,429	$ 5,477
Less: net gains recognized on securities sold	66	146	340	883
Net unrealized gains recognized on securities held at reporting date	$ 694	$ 2,636	$ 2,089	$ 4,594