Pensions And Postretirement Benefits (Schedule Of Components Of Net Periodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 257		$ 514
Service cost	62		124
Expected return on plan assets	(337)		(674)
Net periodic postretirement benefit cost	(18)		(36)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	43		86
Service cost	9		18
Expected return on plan assets	(24)		(48)
Amortization of gain/loss	(69)		(137)
Net periodic postretirement benefit cost	$ (41)		$ (81)