Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) $ in Millions	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 49.1
Other liabilities	$ 11.7
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating lease liabilities	$ 38.3
Total operating lease liabilities	$ 50.0