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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]    
Gross Carrying Amount $ 162,047 $ 162,047
Accumulated Amortization (67,190) (46,657)
Net Carrying Amount 94,857 115,390
Trade Name [Member]
    
Goodwill [Line Items]    
Gross Carrying Amount 7,900 7,900
Accumulated Amortization (3,944) (2,870)
Net Carrying Amount 3,956 5,030
Technological Know-How [Member]
    
Goodwill [Line Items]    
Gross Carrying Amount 43,349 43,349
Accumulated Amortization (18,582) (12,554)
Net Carrying Amount 24,767 30,795
Customer Related Intangible [Member]
    
Goodwill [Line Items]    
Gross Carrying Amount 110,798 110,798
Accumulated Amortization (44,664) (31,233)
Net Carrying Amount $ 66,134 $ 79,565