Exit Activity Costs and Asset Impairments (Summary Of Exit Activity Costs And Asset Impairments by Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	$ 175	$ 759	$ 604	$ 785
Residential Products
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	(182)	679	145	710
Industrial and Infrastructure Products
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	357	72	459	75
Corporate
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	$ 0	$ 8	$ 0	$ 0