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Cloud Computing Arrangements
 9 Months Ended
Jun. 30, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Cloud Computing Arrangements
Note 11 — Cloud Computing Arrangements
The Company capitalizes costs associated with the development of cloud computing arrangements in a manner consistent with internally developed software. Capitalized costs are included in Prepaid expenses and other and Deferred Income Taxes and Other Assets. Capitalized costs to implement cloud computing arrangements at cost and accumulated amortization were as follows:
June 30, 2025September 30, 2024
Short-term portion
$10.4 $10.2 
Long-term portion
61.2 60.6 
Total Capitalized implementation costs
$71.6 $70.8 
Less: accumulated amortization(14.2)(6.3)
Total Capitalized implementation costs, net
$57.4 $64.5 
Costs amortized during the three and nine months ended June 30, 2025 and 2024 are included in Other operating expenses and were as follows:
 Three months ended June 30,Nine months ended June 30,
2025202420252024
Amortization of cloud computing arrangements
$2.6 $2.2 $7.8 $3.8 
As of June 30, 2025, cloud computing arrangement assets in-service have remaining useful lives which range from approximately one to seven years.