Derivative Instruments (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Asset	[1]	$ 38,460	$ 41,842
Derivative Liabilities	[1]	(55,768)	(12,101)
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		13,385	0
Derivative Liabilities		0	0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		25,075	41,842
Derivative Liabilities		(55,768)	(12,101)
Interest rate swaps | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		22,256	40,752
Derivative Liabilities		(52,989)	(11,606)
Interest Rate Floor [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		13,385	0
Derivative Liabilities		0	0
Interest rate caps | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		2,524	147
Derivative Liabilities		(2,524)	(147)
Credit risk participation agreements | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		36	84
Derivative Liabilities		(94)	(277)
Foreign exchange contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		191	77
Derivative Liabilities		(156)	(45)
Mortgage loan commitments | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		5	764
Derivative Liabilities		(5)	0
Mortgage loan forward sale contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		5	5
Derivative Liabilities		0	(1)
Forward TBA contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		58	13
Derivative Liabilities		$ 0	$ (25)

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