Leases - Summary of Lease-Related Assets and Liabilities (Details) $ in Millions	Mar. 31, 2020 USD ($)
Operating leases:
Right-of-use asset	$ 66.7
Current portion of lease liabilities	21.4
Lease liabilities	50.6
Total operating lease liabilities	72.0
Finance leases:
Right-of-use asset	12.9
Current portion of lease liabilities	6.6
Lease liabilities	1.1
Total finance lease liabilities	$ 7.7