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Supplemental Cash Flow Information (Tabular)
 12 Months Ended
Sep. 30, 2020
Supplemental Cash Flow Information [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures
Supplemental cash flow information is presented below.
202020192018
 (in millions)
Cash paid, net:
Interest$24.3 $22.2 $8.9 
Income taxes$15.3 $29.1 $10.7