Goodwill and Related Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Goodwill [Line Items]
Balance at	$ 341,174,000
Foreign currency translation	22,000
Balance at	341,196,000
Residential Products
Goodwill [Line Items]
Balance at	195,520,000
Foreign currency translation	0
Balance at	195,520,000
Industrial and Infrastructure Products
Goodwill [Line Items]
Balance at	145,654,000
Foreign currency translation	22,000
Balance at	$ 145,676,000