Employee Benefit Plans (Summary Of Pension Plans Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at prior valuation date	$ 121,738	$ 127,163
Service cost	516	388	$ 410
Interest cost	2,725	2,169	3,282
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(6,933)	(6,735)
Actuarial (gain) loss	(22,204)	(1,247)
Projected benefit obligation at valuation date	95,842	121,738	127,163
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at prior valuation date	109,807	109,615
Actual return on plan assets	(14,492)	6,913
Employer contributions	14	14
Benefits paid	(6,933)	(6,735)
Fair value of plan assets at valuation date	88,396	109,807	$ 109,615
Funded status and net amount recognized at valuation date	$ (7,446)	$ (11,931)