Retirement Plans And Other Postretirement Benefits (Components Of Net Periodic Benefit Income Or Cost For Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted-average assumptions used to determine benefit obligations:
Defined Benefit Plan Assumption Expected Long Term Return On Assets At Year End	7.00%
Pension Benefits
Weighted-average assumptions used to determine benefit obligations:
Discount rate	4.55%	4.17%	4.99%
Defined Benefit Plan Assumption Expected Long Term Return On Assets At Year End	7.00%	7.50%	7.75%
Weighted-average assumptions used to determine net periodic benefit cost:
Discount rate	4.17%	4.99%	4.21%
Expected long-term return on plan assets	7.50%	7.75%	7.75%
Components of net periodic benefit cost:
Service cost	$ 530	$ 869	$ 3,754
Interest cost	13,217	13,397	12,338
Expected return on plan assets	(17,636)	(18,301)	(17,430)
Amortization of prior service costs and gains or losses	16,190	10,688	15,028
Settlement/curtailment	45	81	28
Net periodic benefit cost	$ 12,346	$ 6,734	$ 13,718
Other Post-Retirement Benefits
Weighted-average assumptions used to determine benefit obligations:
Discount rate	4.49%	4.11%	4.88%
Weighted-average assumptions used to determine net periodic benefit cost:
Discount rate	4.11%	4.88%	4.10%
Components of net periodic benefit cost:
Service cost	$ 44	$ 43	$ 58
Interest cost	325	387	345
Expected return on plan assets	0	0	0
Amortization of prior service costs and gains or losses	(194)	(190)	(210)
Settlement/curtailment	0	0	0
Net periodic benefit cost	$ 175	$ 240	$ 193