Accumulated Other Comprehensive Loss (Schedule Of Amounts Reclassified Out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities (losses) gains reclassified into earnings	$ 0	$ 0	$ (1)	$ 773
Related income tax expense	(7,149)	(7,884)	(14,281)	(14,143)
Net income available to common shareholders	29,115	32,733	58,638	57,074
Securities available-for-sale: | Amounts reclassified from Other Comprehensive (Loss) Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities (losses) gains reclassified into earnings	0	0	(1)	773
Related income tax expense	0	0	0	(185)
Net income available to common shareholders	$ 0	$ 0	$ (1)	$ 588