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Business And Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Business And Summary Of Significant Accounting Policies [Line Items]      
Quantifying Misstatement in Current Year Financial Statements, Amount $ 2,700,000    
Depreciation expense 102,900,000 59,600,000 58,300,000
Capitalized bank fees 9,800,000 12,100,000  
Amortization of capitalized bank fees 2,504,000 1,712,000 1,521,000
Environmental remediation, compliance and management expenses 14,600,000 15,800,000 15,700,000
Accrued liability relating to environmental remediation 7,000,000 8,300,000  
Total costs capitalized 17,800,000 18,100,000  
Amortization expense 1,000,000 1,400,000 1,600,000
Deferred costs 7,500,000 9,300,000  
Amortized costs 7,800,000 7,400,000  
Quantifying Misstatement of Current Year Financial Statements, Amount Net of Tax 1,800,000    
Capitalized Bank Fees [Member]
      
Business And Summary Of Significant Accounting Policies [Line Items]      
Amortization of capitalized bank fees $ 2,500,000 $ 1,700,000 $ 1,400,000