Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments by Segment) (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]
Inventory write-downs &/or asset impairment charges	$ 164	$ 2,637	$ 1,074	$ 2,745
Exit activity costs	945	655	1,733	766
Gain on sale leaseback				(6,799)
Net asset impairment and exit activity charges (gains)	1,109	3,292	2,807	(3,288)
Residential Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	118	2,637	806	2,745
Exit activity costs	140	614	470	725
Gain on sale leaseback				(6,799)
Net asset impairment and exit activity charges (gains)	258	3,251	1,276	(3,329)
Industrial and Infrastructure Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	46	0	268	0
Exit activity costs	805	41	1,263	41
Gain on sale leaseback				0
Net asset impairment and exit activity charges (gains)	$ 851	$ 41	$ 1,531	$ 41