Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details)

v2.3.0.15
Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $)
In Millions
Sep. 30, 2011
Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP $ 1.8 $ 1.7
Liabilities: Derivatives 0.2 1.5
Level 1 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP    
Liabilities: Derivatives    
Level 2 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP 1.8 1.7
Liabilities: Derivatives 0.2 1.5
Level 3 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets: SERP    
Liabilities: Derivatives