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
Dec. 31, 2011
Carrying Value
 
Assets:  
Cash and cash equivalents $ 122.5
Equity investments 1.9
Investments in rabbi trust 5.4
Derivative instruments 0.1
Liabilities:  
Revolving credit facility 283.0
$150 senior unsecured notes 148.5
Quoted Prices in Active Markets (Level 1)
 
Assets:  
Cash and cash equivalents 122.5
Equity investments 0.9
Investments in rabbi trust 5.4
Liabilities:  
$150 senior unsecured notes 155.7
Significant Other Observable Inputs (Level 2)
 
Assets:  
Derivative instruments 0.1
Liabilities:  
Revolving credit facility 278.8
Significant Unobservable Inputs (Level 3)
 
Assets:  
Equity investments $ 1.0