Leases (Tables)

12 Months Ended

Sep. 30, 2025

Leases [Abstract]

Schedule of Components of Lease Expenses and Additional Cash Flow Information Related to Leases

The components of lease expenses are as follows:

	Fiscal Year Ended
	September 30, 2025		September 30, 2024		September 30, 2023
	(in millions)
Operating lease cost	$	147.4	$	149.1	$	164.0
Finance lease cost:
Amortization of right-of-use assets	33.9		28.4		23.1
Interest on lease liabilities	3.7		2.9		2.6
Variable lease cost	32.0		34.6		34.1
Total lease cost	$	217.0	$	215.0	$	223.8

Additional cash flow information related to leases is as follows:

	Fiscal Year Ended
	September 30, 2025		September 30, 2024		September 30, 2023
	(in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	172.6	$	184.9	$	188.3
Operating cash flows from finance leases	3.7		3.0		2.5
Financing cash flows from finance leases	32.4		28.9		23.7
Right-of-use assets obtained in exchange for new operating leases	130.9		90.1		96.6
Right-of-use assets obtained in exchange for new finance leases	47.2		26.6		37.5

Schedule of Additional Balance Sheet Information Related to Leases

Additional balance sheet information related to leases is as follows:

(in millions except as noted)	Balance Sheet Classification	September 30, 2025		September 30, 2024
Assets:
Operating lease assets	Operating lease right-of-use assets	$	463.5	$	432.2
Finance lease assets	Property and equipment – net	74.4		62.1
Total lease assets		$	537.9	$	494.3
Liabilities:
Current:
Operating lease liabilities	Accrued expenses and other current liabilities	$	132.4	$	135.1
Finance lease liabilities	Current portion of long-term debt	31.9		25.5
Total current lease liabilities		164.3		160.6
Non-current:
Operating lease liabilities	Operating lease liabilities, noncurrent	516.0		510.6
Finance lease liabilities	Long-term debt	44.3		35.7
Total non-current lease liabilities		$	560.3	$	546.3

	As of
	September 30, 2025		September 30, 2024		September 30, 2023
Weighted average remaining lease term (in years):
Operating leases	6.1		6.2		6.4
Finance leases	2.7		2.6		2.9
Weighted average discount rates:
Operating leases	5.2	%	5.1	%	4.3	%
Finance leases	4.8	%	4.4	%	4.1	%

Schedule of Operating Lease, Liability, to be Paid, Maturity

Total remaining lease payments under both the Company’s operating and finance leases are as follows:

	Operating Leases		Finance Leases
Fiscal Year	(in millions)
2026	$	163.6	$	35.0
2027	135.7		26.1
2028	118.1		16.0
2029	97.9		4.6
2030	75.4		—
Thereafter	173.3		—
Total lease payments	$	764.0	$	81.7
Less: Amounts representing interest	$	(115.6)	$	(5.5)
Total lease liabilities	$	648.4	$	76.2

Schedule of Finance Lease, Liability, to be Paid, Maturity

Total remaining lease payments under both the Company’s operating and finance leases are as follows:

	Operating Leases		Finance Leases
Fiscal Year	(in millions)
2026	$	163.6	$	35.0
2027	135.7		26.1
2028	118.1		16.0
2029	97.9		4.6
2030	75.4		—
Thereafter	173.3		—
Total lease payments	$	764.0	$	81.7
Less: Amounts representing interest	$	(115.6)	$	(5.5)
Total lease liabilities	$	648.4	$	76.2