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Leases, Codification Topic 842 (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018
Lessee, Lease, Description [Line Items] |  |  |
Operating Lease, Expense | $ 6.3 | $ 5.8 | $ 6.4
Finance Lease, Right-of-Use Asset, Amortization | 1.3 | 1.0 | 0.8
Total lease expense | 7.6 | 6.8 | $ 7.2
Operating Lease, Payments | 6.1 |  |
Finance Lease, Principal Payments | 1.3 |  |
Operating Lease, Right-of-Use Asset | 25.6 | 0.0 |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization | 2.5 |  |
Total Right of Use Assets | 28.1 |  |
Operating lease liability | 4.0 | 0.0 |
Operating Lease, Liability, Noncurrent | 23.3 | $ 0.0 |
Finance Lease, Liability, Current | 1.1 |  |
Finance Lease, Liability, Noncurrent | 1.4 |  |
Total Lease Liabilities | $ 29.8 |  |
Operating Lease, Weighted Average Remaining Lease Term | 7 years 10 months 13 days |  |
Finance Lease, Weighted Average Remaining Lease Term | 2 years 6 months 7 days |  |
Operating Lease, Weighted Average Discount Rate, Percent | 5.64% |  |
Finance Lease, Weighted Average Discount Rate, Percent | 4.96% |  |
Lessee, Operating Lease, Liability, to be Paid, Year One | $ 5.5 |  |
Lessee, Operating Lease, Liability, to be Paid, Year Two | 4.8 |  |
Lessee, Operating Lease, Liability, to be Paid, Year Three | 4.3 |  |
Lessee, Operating Lease, Liability, to be Paid, Year Four | 4.1 |  |
Lessee, Operating Lease, Liability, to be Paid, Year Five | 3.7 |  |
Lessee, Operating Lease, Liability, to be Paid, after Year Five | 12.5 |  |
Lessee, Operating Lease, Liability, to be Paid | 34.9 |  |
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 7.6 |  |
Operating Lease, Liability | 27.3 |  |
Finance Lease, Liability, to be Paid, Year One | 1.2 |  |
Finance Lease, Liability, to be Paid, Year Two | 0.9 |  |
Finance Lease, Liability, to be Paid, Year Three | 0.5 |  |
Finance Lease, Liability, to be Paid, Year Four | 0.1 |  |
Finance Lease, Liability, to be Paid, Year Five | 0.0 |  |
Finance Lease, Liability, to be Paid, after Year Five | 0.0 |  |
Finance Lease, Liability, Payment, Due | 2.7 |  |
Finance Lease, Liability, Undiscounted Excess Amount | 0.2 |  |
Finance Lease, Liability | $ 2.5 |  |
Schedule of Cash Flow, Supplemental Disclosures | Supplemental cash flow information is presented below.
| 2020 |  | 2019 |  | 2018
| (in millions)
Cash paid, net: |  |  |  |  |
Interest | $ | 24.3 |  |  | $ | 22.2 |  |  | $ | 8.9 |
Income taxes | $ | 15.3 |  |  | $ | 29.1 |  |  | $ | 10.7 |

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