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
Dec. 31, 2013
Sep. 30, 2013
Cash flow hedging | Derivatives
   
Liabilities:    
Aggregate notional value of derivatives $ 165.1  
$150 senior unsecured notes
   
Liabilities:    
Long-term debt, principal 150 150
Carrying Value
   
Assets:    
Cash and cash equivalents 62.3  
Equity investments 1.0  
Investments in rabbi trust 6.0  
Derivative instruments 1.8  
Liabilities:    
$150 senior unsecured notes 148.8  
Revolving credit facility 315.4  
Term loan 187.5  
Derivative instruments 0.6  
Warrants to purchase common stock 1.0  
Level 1
   
Assets:    
Cash and cash equivalents 62.3  
Investments in rabbi trust 6.0  
Liabilities:    
$150 senior unsecured notes 159.1  
Level 2
   
Assets:    
Derivative instruments 1.8  
Liabilities:    
Revolving credit facility 315.4  
Term loan 187.5  
Derivative instruments 0.6  
Level 3
   
Assets:    
Equity investments 6.2  
Fair Value
   
Liabilities:    
Warrants to purchase common stock $ 6.2