Exit Activity Costs and Asset Impairments (Reconciles of Liability for Exit Activity Costs Relating to Facility Consolidation Efforts) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Beginning balance			$ 3,744	$ 603
Exit activity costs recognized	$ 2,026	$ 945	5,945	1,733
Cash payments			(8,288)	(1,527)
Ending balance	$ 1,401	$ 809	$ 1,401	$ 809