Leases - As a Lessee - Maturities of Operating and Financing Lease Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Operating Leases
2020		$ 22.4
2020	$ 16.8
2021	25.2	21.0
2022	26.7	22.4
2023	23.0	18.5
2024	18.5	13.9
2025	17.0
Thereafter		165.4
Thereafter	205.5
Total lease payments	332.7	263.6
Less: Imputed interest	(89.7)	(67.8)
Operating lease liabilities	243.0	195.8
Finance Leases
2020		5.0
2020	3.6
2021	4.0	4.1
2022	2.8	2.9
2023	1.8	1.9
2024	1.3	1.4
2025	1.3
Thereafter		31.1
Thereafter	27.9
Total lease payments	42.7	46.4
Less: Imputed interest	(13.3)	(14.6)
Finance lease liabilities	$ 29.4	$ 31.8