Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures (Financial Assets and Liabilities Measured at Fair Value) (Details)

 v2.3.0.11
Fair Value Disclosures (Financial Assets and Liabilities Measured at Fair Value) (Details) (USD $)
In Millions
Jun. 30, 2011
Dec. 31, 2010
Assets: SERP $ 1.8 $ 1.7
Liabilities: Derivatives 0.6 1.5
Level 1 [Member]
   
Assets: SERP    
Liabilities: Derivatives    
Level 2 [Member]
   
Assets: SERP 1.8 1.7
Liabilities: Derivatives 0.6 1.5
Level 3 [Member]
   
Assets: SERP    
Liabilities: Derivatives