Derivative Financial Instruments Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative asset, fair value	$ 142,337	$ 166,715
Derivative, Collateral, Obligation to Return Securities	(435)	(8,172)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	141,902	158,543
Derivative liability, gross liability	231,088	296,766
Derivative liability, Collateral, Right to Reclaim Securities	(6,076)	(2,872)
Derivative liability, Collateral, Right to Reclaim Cash	(96,102)	(127,638)
Derivative liability, Net Amount	128,910	166,256
Interest Rate Swap [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	141,902	166,614
Derivative, Collateral, Obligation to Return Securities	0	(8,071)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	141,902	158,543
Derivative liability, gross liability	231,032	296,267
Derivative liability, Collateral, Right to Reclaim Securities	(5,641)	(2,771)
Derivative liability, Collateral, Right to Reclaim Cash	(96,102)	(127,638)
Derivative liability, Net Amount	129,289	165,858
Foreign Exchange Contract [Member]
Offsetting Assets [Line Items]
Derivative asset, fair value	435	101
Derivative, Collateral, Obligation to Return Securities	(435)	(101)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	0	0
Derivative liability, gross liability	56	499
Derivative liability, Collateral, Right to Reclaim Securities	(435)	(101)
Derivative liability, Collateral, Right to Reclaim Cash	0	0
Derivative liability, Net Amount	$ (379)	$ 398