Employee Benefit Plans (Summary Of Pension Plans Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at prior valuation date	$ 95,842	$ 121,738
Service cost	499	516	$ 388
Interest cost	4,615	2,725	2,169
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(7,667)	(6,933)
Actuarial (gain) loss	660	(22,204)
Projected benefit obligation at valuation date	93,949	95,842	121,738
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at prior valuation date	88,396	109,807
Actual return on plan assets	8,307	(14,492)
Employer contributions	806	14
Benefits paid	(7,667)	(6,933)
Fair value of plan assets at valuation date	89,842	88,396	$ 109,807
Funded status and net amount recognized at valuation date	$ (4,107)	$ (7,446)