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Leases (Tables) | 12 Months Ended
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Sep. 30, 2021
Leases [Abstract] |
Lease, Cost | The following table presents operating lease costs and other related information as of and for the year ended September 30, 2021 (in millions, except as stated):
| Year Ended September 30,
| 2021 | 2020
Operating lease costs (1) | $ | 25.5 |  | $ | 17.2 |
Supplemental cash flow information and non-cash activity: |  |
Cash paid for amounts included in the measurement of operating lease liabilities | $ | 16.8 |  | $ | 12.1 |
Right-of-use assets obtained in exchange for operating lease liabilities | $ | 36.2 |  | $ | 96.4 |
Lease term and discount rate information: |  |
Weighted average remaining lease term (years) | 11.5 | 11.3
Weighted average discount rate | 4.0 | % | 4.3 | %
(1) Includes short-term leases and variable lease costs, which are immaterial.
Schedule of Operating Lease, Liability, Maturity | The maturities of the lease liabilities are as follows as of September 30, 2021 (in millions):
2022 | $ | 17.2 |
2023 | 16.9 |
2024 | 15.5 |
2025 | 14.8 |
2026 | 15.1 |
After 2026 | 106.5 |
Total lease payments | 186.0 |
Less: interest | 39.4 |
Present value of lease liabilities | 146.6 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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