SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Expenses) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred leasing cost accumulated amortization	$ 10,800	$ 6,400
Deferred Costs	61,804	60,407
Mortgages, notes and loans payable	$ 2,443,962	1,978,807
Accounting Standards Update 2015-03
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred Costs		(14,700)
Mortgages, notes and loans payable		$ 14,700