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Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Operating Leases
2021	$ 17.5
2022	18.6
2023	16.7
2024	6.0
2025	3.4
2026 and thereafter	3.8
Total lease payments	66.0
Less imputed interest	(7.4)
Total lease liabilities	58.6	$ 66.6
Finance Leases
2021	5.6
2022	7.1
2023	1.6
2024	0.7
2025	0.5
2026 and thereafter	7.7
Total lease payments	23.2
Less imputed interest	(5.9)
Total finance lease liabilities	$ 17.3	$ 27.3

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