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, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Net asset impairment and exit activity charges (gains)	$ 1,109	$ 3,292	$ 2,807	$ (3,288)
Cost of sales
Restructuring Cost and Reserve [Line Items]
Net asset impairment and exit activity charges (gains)	560	3,173	1,678	3,361
Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Net asset impairment and exit activity charges (gains)	$ 549	$ 119	$ 1,129	$ (6,649)