Employee Benefit Plans (Changes In Benefit Obligations And Fair Value Of Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Discount Rate		4.75%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation at Beginning of Year	$ 32,897	$ 36,617
Service Cost (Credit)	588	671	649
Interest cost	1,500	1,335	1,426
Actuarial Loss (Gain)	3,113	(4,367)
Benefits Paid and Expected Expenses	(1,363)	(1,359)
Projected Benefit Obligation at End of Year	36,735	32,897	36,617
Fair Value of Plan Assets at Beginning of Year	34,414	28,913
Actual Return on Plan Assets	2,125	5,274
Employer Contribution	600	1,600
Benefits Paid and Actual Expenses	(1,367)	(1,373)
Fair Value of Plan Assets at End of Year	35,772	34,414	28,913
Funded Status	(963)	1,517
Discount Rate	4.00%	4.75%
Rate of Compensation Increase	4.50%	4.50%
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Obligation at Beginning of Year	12,530	13,084
Service Cost (Credit)	22	16	(6)
Interest cost	521	531	471
Actuarial Loss (Gain)	(342)	(611)
Benefits Paid and Expected Expenses	(646)	(539)
Medicare Part D Reimbursements	42	49
Projected Benefit Obligation at End of Year	12,127	12,530	13,084
Employer Contribution	604	490
Benefits Paid and Actual Expenses	(646)	(539)
Medicare Part D reimbursements	42	49
Funded Status	$ (12,127)	$ (12,530)
Discount Rate	4.00%	4.75%