Goodwill And Related Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Goodwill [Line Items]
Balance as of December 31, 2013	$ 341,174
Foreign currency translation	(232)
Balance as of March 31, 2014	340,942
Residential Products [Member]
Goodwill [Line Items]
Balance as of December 31, 2013	195,520
Foreign currency translation
Balance as of March 31, 2014	195,520
Industrial and Infrastructure Products [Member]
Goodwill [Line Items]
Balance as of December 31, 2013	145,654
Foreign currency translation	(232)
Balance as of March 31, 2014	$ 145,422

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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