OTHER ASSETS (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Straight-line rent receivables, net	$ 256,160	$ 244,580
Non-mortgage loans receivable, net	53,724	52,544
Other intangibles, net	7,138	8,190
Investments in unconsolidated operating entities	43,668	28,431
Other	144,785	184,619
Total other assets	$ 505,475	$ 518,364