Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Other (Details)

v3.22.2.2
Summary of Significant Accounting Policies - Other (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Total operating lease liabilities $ 121.3 $ 136.3  
Treasury Stock      
Shares Repurchased and Classified as Treasury Stock (shares) 4,767,000 2,792,205 0
Shares repurchased (in dollars) $ 203.9 $ 121.1  
Shares issued from treasury stock under various stock compensation programs (in shares) 1,000,000 700,000 200,000
Preferred stock      
Authorized shares of preferred stock (in shares) 1,000,000    
Preferred stock par value (in dollars per share) $ 0 $ 0  
Shares issued 0 0  
Accumulated other comprehensive loss      
Currency translation $ (113.7) $ 13.1  
Pension and postretirement (net of taxes of $11.9 and $17.8) (32.8) (49.2)  
Unrealized loss on derivative instruments (net of taxes of $1.2 and $0.7) (9.1) (10.2)  
Accumulated other comprehensive loss (155.6) (46.3)  
Pension and postretirement, taxes 24.2 30.0  
Unrealized gain (loss) on derivative instruments, taxes 0.7 0.7  
Research and Development Costs      
Research and development costs 20.9 21.4 $ 18.6
Warranty costs      
Warranty reserves 22.4 24.2  
Warranty costs $ 10.6 13.3 $ 12.6
Minimum      
Warranty costs      
Standard Product Warranty Period 1 year    
Maximum      
Length of Time Hedged in Currency Exchange Rates 24 months    
Self-Insurance      
Deductibles and self-insured retentions per occurrence $ 0.5    
Warranty costs      
Standard Product Warranty Period 2 years    
Business acquisitions and related business acquisition and transition costs      
Measurement period over which initial purchase price allocations are subject to revision 1 year    
Accounting Standards Update 2016-02 [Member]      
Business acquisitions and related business acquisition and transition costs      
Operating lease right-of-use assets, net $ 123.5 $ 138.1