Derivative Financial Instruments Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative asset, fair value	$ 173,528	$ 166,715
Derivative, Collateral, Obligation to Return Securities	(9,335)	(8,172)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	164,193	158,543
Derivative liability, gross liability	291,250	296,766
Derivative liability, Collateral, Right to Reclaim Securities	(7,729)	(2,872)
Derivative liability, Collateral, Right to Reclaim Cash	(118,789)	(127,638)
Derivative liability, Net Amount	164,732	166,256
Interest Rate Swap [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	173,215	166,614
Derivative, Collateral, Obligation to Return Securities	(9,022)	(8,071)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	164,193	158,543
Derivative liability, gross liability	291,213	296,267
Derivative liability, Collateral, Right to Reclaim Securities	(7,416)	(2,771)
Derivative liability, Collateral, Right to Reclaim Cash	(118,789)	(127,638)
Derivative liability, Net Amount	165,008	165,858
Foreign Exchange Contract [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	313	101
Derivative, Collateral, Obligation to Return Securities	(313)	(101)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	0	0
Derivative liability, gross liability	37	499
Derivative liability, Collateral, Right to Reclaim Securities	(313)	(101)
Derivative liability, Collateral, Right to Reclaim Cash	0	0
Derivative liability, Net Amount	$ (276)	$ 398