SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Deferred Financing Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs	$ 17,855	$ 16,059
Amortization expense	5,010	7,116	$ 6,910
Accumulated amortization	13,370	12,413
Intangible lease assets and other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs	4,890	6,431
Mortgage and Other Indebtedness | Adjustments for New Accounting Pronouncement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs	$ 17,855	$ 16,059