Investment Securities - Allowance for Credit Loss Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2025	Jun. 30, 2024
Debt Securities, Available-for-sale [Line Items]
Securities, available-for-sale, allowance for credit loss, beginning balance		$ (839)
Securities, available-for-sale, allowance for credit loss, ending balance	$ (17)	(17)
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Securities, available-for-sale, allowance for credit loss, beginning balance		(839)	$ (731)
Change in securities for which a previous expected credit loss was recognized	719	822	(49)
Additions for securities for which no previous expected credit losses were recognized			1
Securities, available-for-sale, allowance for credit loss, ending balance	$ (17)	$ (17)	$ (781)