Derivative Instruments (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative Asset	[1]	$ 86,709	$ 116,876
Derivative Liabilities	[1]	(36,915)	(37,899)
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		49,593	78,960
Derivative Liabilities		0	0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		37,116	37,916
Derivative Liabilities		(36,915)	(37,899)
Interest rate swaps | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		36,149	35,816
Derivative Liabilities		(36,149)	(35,816)
Interest Rate Floor [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		49,593	78,960
Derivative Liabilities		0	0
Interest rate caps | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		392	1,391
Derivative Liabilities		(392)	(1,391)
Credit risk participation agreements | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		57	77
Derivative Liabilities		(83)	(194)
Foreign exchange contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		359	534
Derivative Liabilities		(282)	(479)
Mortgage loan commitments | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		141	89
Derivative Liabilities		0	(1)
Mortgage loan forward sale contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		8	8
Derivative Liabilities		0	0
Forward TBA contracts | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		10	1
Derivative Liabilities		$ (9)	$ (18)

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