Employee Benefit Plans (Pension Liability Recognized In The Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Noncurrent asset	$ (393)	$ 0
Noncurrent liability	(13,131)	(17,570)
Total	$ (13,524)	$ (17,570)