Investments - Schedule of Debt Securities Available-for-sale Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments Debt And Equity Securities [Abstract]
Beginning balance	$ 434	$ 292	$ 339	$ 441
Increase to allowance from securities for which credit losses were not previously recorded	281	168	25	292
Reduction from securities sold during the period		(166)		(619)
Reductions from intent to sell securities				(17)
Net increase (decrease) from securities that had an allowance at the beginning of the period	(11)	33	340	230
Ending balance	$ 704	$ 327	$ 704	$ 327