Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill - Intangible Assets (Details)

v3.23.1
Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Sep. 30, 2022
Intangible Assets [Line Items]    
Cost $ 1,261.9 $ 906.9
Accumulated Amortization (372.6) (316.5)
Total 1,484.9 1,124.5
Trade names    
Intangible Assets [Line Items]    
Indefinite-lived assets: 223.0 217.6
Customer relationships    
Intangible Assets [Line Items]    
Cost 1,032.9 739.6
Accumulated Amortization (262.1) (221.1)
Trade names    
Intangible Assets [Line Items]    
Cost 47.9 0.0
Accumulated Amortization (2.4) 0.0
Technology, including patents    
Intangible Assets [Line Items]    
Cost 141.8 132.9
Accumulated Amortization (77.7) (68.4)
Software    
Intangible Assets [Line Items]    
Cost 39.3 34.4
Accumulated Amortization $ (30.4) $ (27.0)