LEASES - Income and Expenses (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 16.8
Amortization of right-of-use assets	0.4
Interest on lease liabilities	0.1
Short-term leases costs	1.1
Sublease income	(3.2)
Net lease cost	$ 15.2