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Leases (Tables) | 3 Months Ended
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Dec. 31, 2022
Leases |
Schedule of components of lease expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ |  | December 31, 2022 |  | December 31, 2021
​ | ​ | (in millions)
Operating lease cost | ​ | $ | 41.5 | ​ | $ | 44.1
Finance lease cost | ​ |  | ​ | ​ | ​ | ​
Amortization of right-of-use assets | ​ |  | 5.1 | ​ | ​ | 4.1
Interest on lease liabilities | ​ |  | 0.6 | ​ | ​ | 0.5
Variable lease cost | ​ |  | 7.9 | ​ | ​ | 8.1
Total lease cost | ​ | $ | 55.1 | ​ | $ | 56.8
​
Schedule of additional balance sheet information related to leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | As of | ​ | As of
(in millions except as noted) |  | Balance Sheet Classification |  | December 31, 2022 |  | September 30, 2022
Assets: |  |  |  | ​ | ​ | ​ | ​ |
Operating lease assets |  | Operating lease right-of-use assets | ​ | $ | 556.4 | ​ | $ | 539.8
Finance lease assets |  | Property and equipment – net | ​ | ​ | 56.2 | ​ | ​ | 49.4
Total lease assets |  |  | ​ | $ | 612.6 | ​ | $ | 589.2
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities: |  |  | ​ | ​ | ​ | ​ | ​ | ​
Current: |  |  | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities |  | Accrued expenses and other current liabilities | ​ | $ | 144.9 | ​ | $ | 145.6
Finance lease liabilities |  | Current portion of long-term debt | ​ | ​ | 20.4 | ​ | ​ | 18.1
Total current lease liabilities |  |  | ​ | ​ | 165.3 | ​ | ​ | 163.7
Non-current: |  |  | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities |  | Operating lease liabilities, noncurrent | ​ | ​ | 606.9 | ​ | ​ | 595.3
Finance lease liabilities |  | Long-term debt | ​ | ​ | 36.3 | ​ | ​ | 32.0
Total non-current lease liabilities |  |  | ​ | $ | 643.2 | ​ | $ | 627.3
​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | As of | ​
​ |  | December 31, 2022 |  | September 30, 2022 | ​
Weighted average remaining lease term (in years): | ​ | ​ |  | ​ |
Operating leases |  | 6.6 | ​ | 6.5 | ​
Finance leases |  | 3.1 | ​ | 3.1 | ​
Weighted average discount rates: |  | ​ | ​ | ​ | ​
Operating leases |  | 4.1 | % | 4.0 | %
Finance leases |  | 3.9 | % | 3.8 | %
​
Schedule of additional cash flow information related to leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | December 31, | ​ | December 31,
​ |  | 2022 |  | 2021
​ | ​ | (in millions)
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ |
Operating cash flows from operating leases | ​ | $ | 49.0 | ​ | $ | 50.8
Operating cash flows from finance leases | ​ | ​ | 0.6 | ​ | ​ | 0.5
Financing cash flows from finance leases | ​ | ​ | 5.4 | ​ | ​ | 4.3
Right-of-use assets obtained in exchange for new operating leases | ​ | ​ | 26.9 | ​ | ​ | 14.7
Right-of-use assets obtained in exchange for new finance leases | ​ | ​ | 10.8 | ​ | ​ | 7.9
​
Schedule of total remaining lease payments under the Company's operating and finance leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Operating Leases |  | Finance Leases
Fiscal Year | ​ | (in millions)
2023 (nine months remaining) | ​ | $ | 131.2 | ​ | $ | 16.7
2024 | ​ |  | 155.1 | ​ | ​ | 20.2
2025 | ​ |  | 130.1 | ​ | ​ | 14.4
2026 | ​ |  | 102.2 | ​ | ​ | 7.5
2027 | ​ | ​ | 78.1 | ​ | ​ | 1.3
Thereafter | ​ |  | 264.0 | ​ | ​ | 0.1
Total lease payments | ​ | $ | 860.7 | ​ | $ | 60.2
Less: Amounts representing interest | ​ | $ | (108.9) | ​ | $ | (3.5)
Total lease liabilities | ​ | $ | 751.8 | ​ | $ | 56.7

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating and Finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References No definition available. + Details
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