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Segments and Geographic Areas (Schedule of Net Sales by Region) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Segment and Geographical Areas [Abstract]      
Export sales $ 50,400,000 $ 38,800,000 $ 24,900,000
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 563,600,000 654,100,000 615,200,000
North America [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 154,300,000 175,400,000 150,000,000
Europe [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 215,600,000 241,300,000 246,000,000
Central and South America [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 42,400,000 53,000,000 61,000,000
Middle East [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 43,300,000 62,100,000 57,000,000
Asia [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 98,600,000 115,300,000 95,000,000
Other [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 9,400,000 $ 7,000,000 $ 6,200,000