Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Total	$ 2,161	$ 696	$ 7,401	$ 989
Exit activity costs	2,161	624	6,208	917
Cost of sales
Restructuring Cost and Reserve [Line Items]
Total	718	472	5,765	541
Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Total	$ 1,443	$ 224	$ 1,636	$ 448