Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 112.9	$ 110.4
Operating lease liabilities	33.9	35.0
Operating lease liability, noncurrent	80.9	78.2
Total lease liabilities	$ 114.8	$ 113.2