Leases - Amounts Recognized for Leases (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Leases, Operating [Abstract]
Operating lease right-of-use assets	$ 92.3
Other accrued liabilities	28.7	$ 0.0
Other non-current liabilities	67.5
TOTAL LIABILITIES	$ 96.2