v3.26.1
Leases - Schedule of Additional Balance Sheet Information Related to Leases (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Assets:    
Operating lease assets $ 441,962 $ 463,479
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating lease assets Operating lease assets
Finance lease assets $ 68,100 $ 74,400
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Total lease assets $ 510,100 $ 537,900
Current:    
Operating lease liabilities $ 129,300 $ 132,400
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Accrued Liabilities, Current Accrued Liabilities, Current
Finance lease liabilities $ 31,700 $ 31,900
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Long-Term Debt and Lease Obligation, Current Long-Term Debt and Lease Obligation, Current
Total current lease liabilities $ 161,000 $ 164,300
Non-current:    
Operating lease liabilities $ 487,799 $ 515,998
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Operating lease liabilities Operating lease liabilities
Finance lease liabilities $ 38,600 $ 44,300
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Long-term debt Long-term debt
Total non-current lease liabilities $ 526,400 $ 560,300
Weighted average remaining lease term (in years):    
Operating leases (in years) 5 years 8 months 12 days 6 years 1 month 6 days
Finance leases (in years) 2 years 6 months 2 years 8 months 12 days
Weighted average discount rates:    
Operating leases (as percent) 5.30% 5.20%
Finance leases (as percent) 4.70% 4.80%