Debt Obligations - Schedule of Aggregate Debt Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finance Leases
2020	$ 11.0
2021	10.6
2022	10.0
2023	4.3
2024	2.5
Thereafter	1.0
Total future lease payments	39.4
Less: Amount representing interest	(4.8)
Total lease liability balance	34.6
Debt
2020	224.8
2021	562.4
2022	79.3
2023	99.0
2024	12.1
Thereafter	8.2
Total minimum principal & interest payments	985.8
Less: Amount representing interest	(149.7)
Total aggregate finance lease and debt payments	836.1
Total
2020	235.8
2021	573.0
2022	89.3
2023	103.3
2024	14.6
Thereafter	9.2
Total minimum principal & interest payments	1,025.2
Less: Amount representing interest	(154.5)
Total aggregate finance lease and debt payments	$ 870.7	$ 781.0

Debt, Including Interest Payable

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Long-Term Debt And Lease Obligations, Maturities, Interest Included In Payments

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Long-Term Debt And Lease Obligations, Maturities, Repayments Of Principal After Year Five

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Long-Term Debt And Lease Obligations, Maturities, Repayments Of Principal In Year Four

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Present value of lessee's discounted obligation for lease payments from finance lease.

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