Leases - Schedule of Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Operating leases
Operating lease right-of-use assets	$ 78.4	$ 0.0
Current portion of operating lease liabilities	11.3	0.0
Non-current portion of operating lease liabilities	85.4	$ 0.0
Total operating lease liabilities	96.7
Finance leases
Property, equipment and software, gross	2.8
Accumulated depreciation	(0.6)
Property, equipment and software, net	2.2
Other accrued expenses	1.1
Other non-current liabilities	0.5
Total finance lease liabilities	$ 1.6
Weighted average remaining lease term:
Operating leases	8 years
Finance leases	2 years
Weighted average borrowing rate:
Operating leases	8.73%
Finance leases	6.27%