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Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Goodwill And Other Intangible Assets [Line Items]    
Goodwill associated with the Company's Asia business segment $ 37,912,000 $ 37,912,000
Amortization of other intangible assets 600,000 800,000
Customer Relationships [Member]
    
Goodwill And Other Intangible Assets [Line Items]    
Estimated useful life (in years) 10  
Asia [Member]
    
Goodwill And Other Intangible Assets [Line Items]    
Goodwill associated with the Company's Asia business segment 37,900,000 37,900,000
Americas And Europe [Member]
    
Goodwill And Other Intangible Assets [Line Items]    
Accumulated goodwill impairment losses $ 247,500,000 $ 247,500,000