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Lease Commitments - Maturity of Lease Liabilities (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Leases [Abstract] |  |
2020 | $ 38.9 |
2021 | 38.3 |
2022 | 31.4 |
2023 | 26.7 |
2024 | 21.1 |
Thereafter | 82.4 |
Total undiscounted lease liabilities | 238.8 | [1]
Present value discounting of operating lease liabilities | $ 50.4 |
[1] | Total undiscounted lease liabilities were $50.4 million greater than the operating leases recorded in Other liabilities primarily due to present value discounting. Both amounts exclude leases with initial terms of 12 months or less and leases that have not yet commenced.

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