v3.25.4
Leases - Balance Sheet Information (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Sep. 30, 2025
Finance Leases    
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant and Equipment, Net Property, Plant and Equipment, Net
Total Finance Lease Assets $ 27.7 $ 28.3
Current finance lease liabilities 3.5 3.4
Non Current Finance Lease Liabilities 28.2 28.7
Total Finance Lease Liabilities $ 31.7 $ 32.1
Weighted-average remaining lease term (years) 11 years 3 months 18 days 11 years 6 months
Weighted-average discount rate 6.80% 6.80%
Operating Leases    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Deferred Income Taxes and Other Assets Deferred Income Taxes and Other Assets
Total Operating Lease Assets $ 19.1 $ 20.2
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accrued expenses Accrued expenses
Accrued expenses $ 6.7 $ 6.9
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Deferred Income Taxes and Other Liabilities Deferred Income Taxes and Other Liabilities
Deferred Income Taxes and Other Liabilities $ 9.5 $ 10.2
Total Operating Lease Liabilities $ 16.2 $ 17.1
Weighted-average remaining lease term (years) 5 years 7 months 6 days 5 years 7 months 6 days
Weighted-average discount rate 6.70% 6.60%