Leases - Other Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease obligations:
Operating cash flows paid for operating leases	$ 62.7
Operating cash flows paid for finance leases	3.7
Financing cash flows paid for finance leases	7.7
Right-of-use assets obtained in exchange for new operating lease obligations	60.9
Right-of-use asset obtained in exchange for finance lease liability	$ 4.1