Investments, Unrealized Gains (Losses) on Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments [Abstract]
Net realized and unrealized losses recognized during the period on equity securities	$ (1,486)	$ (2,783)	$ (3,367)	$ (5,456)
Less: Net realized gains recognized during the period on equity securities sold during the period	0	0	0	0
Unrealized losses recognized during the reporting period on equity securities, net	$ (1,486)	$ (2,783)	$ (3,367)	$ (5,456)