COMPONENTS OF RENTAL INCOME AND EXPENSE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating Leases, Income Statement, Lease Revenue [Abstract]
Recognition of straight-line rents	$ (2.8)	$ (0.5)	$ (3.5)	$ (0.3)
Recognition of amortization of above and below market leases	$ 0.7	$ 0.9	$ 1.4	$ 1.7