Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 3,983	$ 3,660	$ 6,338	$ 3,352
Cost of sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	683	1,621	968	1,465
Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 3,300	$ 2,039	$ 5,370	$ 1,887