REAL ESTATE AND RELATED LEASE INTANGIBLES, NET - (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Real Estate [Abstract]
Gross intangible assets	$ 140.8		$ 140.8		$ 139.5
Accumulated amortization	39.8		39.8		32.7
Net intangible assets	100.9		100.9		106.8
Unamortized favorable/unfavorable lease intangibles	5.8		5.8		6.5
Adjustment against operating lease income for favorable/unfavorable leases	0.3	$ 0.4	0.7	$ 0.8
Unbilled rent receivables	5.4		5.4		5.0
Unencumbered real estates	$ 71.8		$ 71.8		$ 47.8