Leases - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Operating leases
Operating lease right-of-use assets	$ 75.0	$ 0.0
Current portion of operating lease liabilities	11.1	0.0
Non-current portion of operating lease liabilities	81.8	$ 0.0
Total operating lease liabilities	92.9
Finance leases
Property, equipment and software, gross	2.8
Accumulated depreciation	(0.9)
Property, equipment and software, net	1.9
Other accrued expenses	1.0
Other non-current liabilities	0.4
Total finance lease liabilities	$ 1.4
Weighted average remaining lease term:
Operating leases	8 years
Finance leases	2 years
Weighted average borrowing rate:
Operating leases	8.74%
Finance leases	6.33%