MORTGAGE AND OTHER INDEBTEDNESS, NET (Covenants) (Details)	12 Months Ended
	Dec. 31, 2016 USD ($)
Non Recourse Loans On Operating Properties
Debt Instrument [Line Items]
Debt instrument, debt default threshold, minimum loan amount (greater than)	$ 50,000,000
Recourse term loans on operating Properties
Debt Instrument [Line Items]
Debt instrument, debt default threshold, minimum loan amount (greater than)	$ 150,000,000
Senior Unsecured Notes | Minimum
Debt Instrument [Line Items]
Secured debt to total assets (percent) (less than)	40.00%
Senior unsecured notes due 2026 | Minimum
Debt Instrument [Line Items]
Secured debt to total assets (percent) (less than)	40.00%
Required | Unsecured Credit Facility and Term Loan
Debt Instrument [Line Items]
Total debt to total assets (percent)	60.00%
Total unencumbered assets to unsecured debt (percent)	160.00%
Unencumbered NOI to unsecured interest expense (percent)	175.00%
EBITDA to fixed charges (debt service) (percent)	150.00%
Required | Senior Unsecured Notes
Debt Instrument [Line Items]
Total debt to total assets (percent)	60.00%
Total unencumbered assets to unsecured debt (percent)	150.00%
Secured debt to total assets (percent) (less than)	45.00%
Consolidated income available for debt service to annual debt service charge (percent)	150.00%
Actual | Unsecured Credit Facility and Term Loan
Debt Instrument [Line Items]
Total debt to total assets (percent)	48.00%
Total unencumbered assets to unsecured debt (percent)	240.00%
Unencumbered NOI to unsecured interest expense (percent)	520.00%
EBITDA to fixed charges (debt service) (percent)	250.00%
Actual | Senior Unsecured Notes
Debt Instrument [Line Items]
Total debt to total assets (percent)	53.00%
Total unencumbered assets to unsecured debt (percent)	221.00%
Secured debt to total assets (percent) (less than)	30.00%
Consolidated income available for debt service to annual debt service charge (percent)	300.00%