Derivative Financial Instruments Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Offsetting Assets [Line Items]
Derivative asset, fair value	$ 158,647	$ 331,269
Financial Instruments	(8,097)	(7)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	150,550	331,262
Derivative liability, gross liability	86,327	165,210
Derivative liability, Collateral, Right to Reclaim Securities	(6,725)	(7)
Derivative liability, Collateral, Right to Reclaim Cash	(74,359)	(165,203)
Derivative liability, Net Amount	5,243	0
Interest Rate Swap
Offsetting Assets [Line Items]
Derivative asset, fair value	158,578	330,951
Financial Instruments	(8,028)	(2)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	150,550	330,949
Derivative liability, gross liability	86,087	165,205
Derivative liability, Collateral, Right to Reclaim Securities	(6,656)	(2)
Derivative liability, Collateral, Right to Reclaim Cash	(74,359)	(165,203)
Derivative liability, Net Amount	5,072	0
Foreign Exchange Contract
Offsetting Assets [Line Items]
Derivative asset, fair value	69	318
Financial Instruments	(69)	(5)
Derivative, Collateral, Obligation to Return Cash	0	0
Net Amount	0	313
Derivative liability, gross liability	240	5
Derivative liability, Collateral, Right to Reclaim Securities	(69)	(5)
Derivative liability, Collateral, Right to Reclaim Cash	0	0
Derivative liability, Net Amount	$ 171	$ 0