Leases - Supplemental Cash Flow and Other Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Cash Flow and Other Information [Line Items]
Operating Lease, Payments	$ 60.8	$ 35.4
Finance Lease, Interest Payment on Liability	0.9	0.0
Payments on financing leases	2.6	0.0
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 47.6	936.6
Operating Lease, Weighted Average Remaining Lease Term	8 years 6 months
Finance Lease, Weighted Average Remaining Lease Term	7 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	7.82%
Finance Lease, Weighted Average Discount Rate, Percent	5.26%
Adjustments for New Accounting Pronouncement [Member]
Supplemental Cash Flow and Other Information [Line Items]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 111.1	$ 82.7