Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	$ 2,802	$ 502	$ 3,876	$ 3,247
Exit activity costs	963	263	2,696	1,029
Gain on sale leaseback				(6,799)
Net asset impairment and exit activity charges (gains)	3,765	765	6,572	(2,523)
Residential Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	373	502	1,179	3,247
Exit activity costs	207	255	677	980
Gain on sale leaseback				(6,799)
Net asset impairment and exit activity charges (gains)	580	757	1,856	(2,572)
Industrial and Infrastructure Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	2,429	0	2,697	0
Exit activity costs	756	8	2,019	49
Gain on sale leaseback				0
Net asset impairment and exit activity charges (gains)	$ 3,185	$ 8	$ 4,716	$ 49