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Leases And Other Commitments - Maturity of Lease Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
Operating Leases |  |  |
2020 | $ 17.4 |  |
2021 | 17.4 |  |
2022 | 14.6 |  |
2023 | 14.3 |  |
2024 | 12.5 |  |
Thereafter | 23.9 |  |
Total future lease cost | 100.1 |  |
Less: Amount representing interest | (14.3) |  |
Present value of future payments | 85.8 |  |
Less: Short-term leases not recorded as a liability | 0.2 |  |
Revised present value of future lease payments | 86.0 | $ 40.4 |
Less: Current portion | (13.6) |  | $ 0.0
Long-term portion | 72.4 |  | $ 0.0
Finance Leases |  |  |
2020 | 1.3 |  |
2021 | 1.3 |  |
2022 | 1.4 |  |
2023 | 1.4 |  |
2024 | 1.5 |  |
Thereafter | 13.9 |  |
Total future lease cost | 20.8 |  |
Less: Amount representing interest | (5.8) |  |
Present value of future payments | 15.0 |  |
Less: Short-term leases not recorded as a liability | 0.0 |  |
Revised present value of future lease payments | 15.0 | $ 15.9 |
Less: Current portion | (0.6) |  |
Long-term portion | 14.4 |  |
Minimum lease payments for leases not yet commenced | $ 5.5 |  |

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