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Pension And Postretirement Obligations (Schedule Of Amounts In Other Comprehensive Income (Loss) And Net Periodic Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Benefits [Member]
Actuarial net (gain) loss	$ (163)	$ 2,787	$ (1,244)
Prior service (credit) cost	(56)	(56)	(56)
Total recognized in other comprehensive (income) loss	(219)	2,731	(1,300)
Total recognized in net periodic benefit cost (income) and other comprehensive (income) loss	629	3,489	(322)
Postretirement Benefits [Member]
Actuarial net (gain) loss	(1,609)	432	130
Transition obligation (asset)	(28)	(28)	(28)
Prior service (credit) cost	330	330	330
Total recognized in other comprehensive (income) loss	(1,307)	734	432
Total recognized in net periodic benefit cost (income) and other comprehensive (income) loss	$ (1,411)	$ 610	$ 320

- Definition

Before tax amount, net of reclassification adjustments, of the benefit improvement costs resulting from a plan amendment that occurred that has not been recognized in net periodic benefit cost.

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- Definition

Before tax amount of the income statement impact of the reclassification adjustment for the net transition asset (obligation) recognized as a component of net periodic benefit cost.

+ References+ Details