Pension (Net Pension Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pension [Abstract]
Service cost - benefits earned during the period	$ 138	$ 126	$ 271	$ 252
Interest cost on projected benefit obligation	1,005	1,216	1,972	2,432
Expected Return on Plan Assets	(1,439)	(1,523)	(2,876)	(3,046)
Amortization of Prior Service Cost	(67)	0	(135)	0
Amortization of unrecognized net loss	642	654	1,293	1,309
Net periodic pension cost	$ 279	$ 473	$ 525	$ 947