Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 4.9	$ 4.5
Operating cash flows for finance leases	0.1	0.1
Financing cash flows for finance leases	0.6	0.2
ROU assets obtained in exchange for lease obligations:
Operating leases	1.7	0.2
Finance leases	$ 0.0	$ 0.5