v3.26.1
Cloud Computing Arrangements (Tables)
 6 Months Ended
Mar. 31, 2026
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Capitalized Computer Software, Net Capitalized costs to implement cloud computing arrangements at cost and accumulated amortization were as follows:
March 31, 2026September 30, 2025
Short-term portion
$10.5 $10.4 
Long-term portion
61.6 61.3 
Total Capitalized implementation costs
$72.1 $71.7 
Less: accumulated amortization(22.0)(16.8)
Total Capitalized implementation costs, net
$50.1 $54.9 
Costs amortized during the three and six months ended March 31, 2026 and 2025 are included in Other operating expense, net and were as follows:
 Three months ended March 31,Six months ended March 31,
2026202520262025
Amortization of cloud computing arrangements
$2.6 $2.7 $5.2 $5.2