Derivative Instruments (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Asset	[1]	$ 12,404	$ 41,842
Derivative Liabilities	[1]	(27,599)	(12,101)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative Asset		10,484	40,752
Derivative Liabilities		(25,879)	(11,606)
Interest rate caps
Derivatives, Fair Value [Line Items]
Derivative Asset		1,550	147
Derivative Liabilities		(1,550)	(147)
Credit risk participation agreements
Derivatives, Fair Value [Line Items]
Derivative Asset		86	84
Derivative Liabilities		(162)	(277)
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative Asset		37	77
Derivative Liabilities		(5)	(45)
Mortgage loan commitments
Derivatives, Fair Value [Line Items]
Derivative Asset		230	764
Derivative Liabilities		0	0
Mortgage loan forward sale contracts
Derivatives, Fair Value [Line Items]
Derivative Asset		0	5
Derivative Liabilities		0	(1)
Forward TBA contracts
Derivatives, Fair Value [Line Items]
Derivative Asset		17	13
Derivative Liabilities		$ (3)	$ (25)

[1] * The fair value of each class of derivative is shown in Note 11.