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
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	$ 429	$ 29
Residential Products [Member]
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	327	29
Industrial and Infrastructure Products [Member]
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments	102
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Total exit activity costs and asset impairments