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Leases - The Company as Lessee - Future Minimum Payments Under Non-cancelable Operating Leases as Lessee (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 4.6
2022	4.6
2023	3.4
2024	2.7
2025	1.2
Thereafter	7.9
Total lease payments	24.4
Less: Interest	(6.0)
Total lease liabilities	18.4	$ 21.6
Finance Leases
2021	1.4
2022	1.0
2023	0.7
2024	0.2
2025	0.0
Thereafter	0.0
Total lease payments	3.3
Less: Interest	(0.1)
Total lease liabilities	$ 3.2	$ 3.5

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