Employee Benefit Plans (Changes In Benefit Obligations And Fair Value Of Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation at Beginning of Year	$ 36,735	$ 32,897
Service Cost	593	588
Interest cost	1,422	1,500
Actuarial (Gain) Loss	(737)	3,113
Benefits Paid and Expected Expenses	(1,510)	(1,363)
Projected Benefit Obligation at End of Year	36,503	36,735
Fair Value of Plan Assets at Beginning of Year	35,772	34,414
Actual Return on Plan Assets	213	2,125
Employer Contribution	646	600
Benefits Paid and Actual Expenses	(1,513)	(1,367)
Fair Value of Plan Assets at End of Year	35,118	35,772
Funded Status	$ (1,385)	$ (963)
Discount Rate	4.50%	4.00%
Rate of Compensation Increase	4.50%	4.50%
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation at Beginning of Year	$ 12,127	$ 12,530
Service Cost	(64)	22
Interest cost	427	521
Actuarial (Gain) Loss	(1,931)	(342)
Benefits Paid and Expected Expenses	(684)	(646)
Medicare Part D Reimbursements	44	42
Projected Benefit Obligation at End of Year	9,919	12,127
Employer Contribution	640	604
Benefits Paid and Actual Expenses	(684)	(646)
Medicare Part D reimbursements	44	42
Funded Status	$ (9,919)	$ (12,127)
Discount Rate	4.50%	4.00%