Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v2.4.0.6
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Jul. 09, 2010
$150 senior unsecured notes
   
Liabilities:    
Long-term debt, principal $ 0 $ 150
Carrying Value
   
Assets:    
Cash and cash equivalents 40.7  
Equity investments 1.0  
Investments in rabbi trust 5.3  
Derivative instruments 0.7  
Liabilities:    
$150 senior unsecured notes 148.7  
Revolving credit facility 375.9  
Term loan 195.0  
Derivative instruments 2.2  
Level 1
   
Assets:    
Cash and cash equivalents 40.7  
Investments in rabbi trust 5.3  
Liabilities:    
$150 senior unsecured notes 164.5  
Level 2
   
Assets:    
Derivative instruments 0.7  
Liabilities:    
Revolving credit facility 375.9  
Term loan 195.0  
Derivative instruments 2.2  
Level 3
   
Assets:    
Equity investments $ 1.0