Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2022
Other Commitments [Line Items]
Reserve for unfunded lending commitments	$ 28,894	$ 25,493	$ 29,613	$ 33,309
Federal Deposit Insurance Corporation (FDIC) Special Assessment [Member]
Other Commitments [Line Items]
Pre-tax special assessment expense	$ 26,100
Loss of contingency accrual		$ 30,700