Exit Activity Costs and Asset Impairments (Reconciles Of Liability For Exit Activity Costs Relating To Facility Consolidation Efforts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Balance as of	$ 1,923	$ 961
Exit activity costs recognized	10,144	3,475	$ 7,125
Cash payments	(4,629)	(2,513)
Non-cash charges	(1,989)	0
Balance as of	$ 5,449	$ 1,923	$ 961