Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v2.4.0.8
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Assets:    
Cash flow swaps designated as hedges $ 4.0  
Total assets 28.3 21.4
Significant Other Observable Inputs (Level 2) [Member]
    
Assets:    
Cash surrender value of life insurance policies 24.3 21.4
Liabilities:    
Deferred compensation plan 15.0 13.8
Total liabilities 39.7 48.1
Cash flow swaps designated as hedges [Member] | Significant Other Observable Inputs (Level 2) [Member]
    
Liabilities:    
Cash flow swaps 22.4 31.4
Cash flow swaps not designated as hedges [Member] | Significant Other Observable Inputs (Level 2) [Member]
    
Liabilities:    
Cash flow swaps $ 2.3 $ 2.9