Annual report pursuant to Section 13 and 15(d)

Retirement Benefits (Details 2)

v2.3.0.15
Retirement Benefits (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 30, 2011
Year
Acquisitions
company
Segment
Month
RetirementPrograms
Sep. 30, 2010
Sep. 30, 2009
Cash Flows      
Cash contribution to defined benefit retirement plans $ 2.8 $ 6.5 $ 9.5
Defined Contribution Plans      
Maximum percentage of employer's contribution to defined contribution plans (as a percent) 4.00%    
Maximum matching percentage of employer's contribution to defined contribution plans (as a percent) 6.00%    
Contribution vesting period, minimum (in years) 0    
Contribution vesting period, maximum (in years) 5    
Expenses related to defined contribution plans 6.7 5.8 5.1
Cash equivalents | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 7.2 8.0  
Cash equivalents | Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 4.9 5.1  
Cash equivalents | Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 2.3 2.9  
Equity Investments | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 20.1 22.5  
Equity Investments | Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 20.1 22.5  
Corporate bonds | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 71.5 67.6  
Corporate bonds | Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 10.5 11.7  
Corporate bonds | Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 61.0 55.9  
Municipal bonds | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 8.6 2.4  
Municipal bonds | Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 8.6 2.4  
Asset backed debt securities in trust | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 0.1 1.6  
Asset backed debt securities in trust | Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 0.1 1.6  
U.S. Government securities | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 2.1 1.9  
U.S. Government securities | Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 2.1 1.9  
Government index funds | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 7.5 3.3  
Government index funds | Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 7.5 3.3  
Equity mutual funds | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 81.1 86.0  
Equity mutual funds | Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 81.1 86.0  
Real estate | Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 2.1 2.4  
Real estate | Pension plans | Level 3
     
Fair Value Measurements      
Fair value of plan assets 2.1 2.4  
Pension plans | Fair Value
     
Fair Value Measurements      
Fair value of plan assets 200.3 195.7  
Pension plans | Level 1
     
Fair Value Measurements      
Fair value of plan assets 124.1 128.6  
Pension plans | Level 2
     
Fair Value Measurements      
Fair value of plan assets 74.1 64.7  
Pension plans | Level 3
     
Fair Value Measurements      
Fair value of plan assets 2.1 2.4  
Pension plans
     
Fair Value Measurements      
Fair value of plan assets 200.3 195.7 155.5
Cash Flows      
Cash contribution to defined benefit retirement plans 2.5 6.1 9.2
Estimated cash contribution to defined benefit retirement plans 3.3    
Estimated Future Benefit Payments      
2012 11.7    
2013 12.6    
2014 13.4    
2015 14.3    
2016 15.1    
2017 - 2021 $ 86.3    
Postretirement healthcare plan | Rotex
     
Defined Contribution Plans      
Maximum percentage of employer's contribution to defined contribution plans (as a percent) 3.00%    
Maximum matching percentage of employer's contribution to defined contribution plans (as a percent) 8.00%    
Minimum matching percentage of employer's contribution to defined contribution plans (as a percent) 2.00%    
Contribution vesting period, minimum (in years) 0    
Contribution vesting period, maximum (in years) 6