Pension Plans And Postretirement Obligations (Components Of Net Periodic Cost (Gain)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 195	$ 191	$ 586	$ 604
Expected return on plan assets	(195)	(228)	(586)	(669)
Amortization of prior service cost	14	14	42	42
Recognized actuarial loss	237	142	711	497
Net periodic benefit cost (benefit)	251	119	753	474
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	24	30	73	89
Expected return on plan assets	7	(6)	21	(15)
Amortization of prior service cost	(11)	(49)	(34)	(147)
Recognized actuarial loss	21	6	63	18
Net periodic benefit cost (benefit)	$ 41	$ (19)	$ 123	$ (55)