Leases - Supplemental Cash Flow Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 36.8
Operating cash flows from finance leases	3.5
Financing cash flows from finance leases	1.9
Operating leases, Right-of-use assets obtained in exchange for lease obligations	23.3
Finance leases, Right-of-use assets obtained in exchange for lease obligations	$ 0.5