ACQUIRED IN-PLACE LEASES AND ABOVE/BELOW MARKET LEASES Acquired Lease Intangibles and Leasing Costs Included in Other Assets and Other Liabilities and Deferred Credits (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired above market leases, net	$ 2,382	$ 3,337
Other intangible assets, accumulated amortization	(2,030)	(1,904)
Below market leases	67,287	68,973
Below market leases, accumulated amortization	(32,628)	(30,806)
Acquired lease intangible liabilities, net	34,659	38,167
Leases, Acquired-in-Place
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired above market leases, net	49,859	52,289
Other intangible assets, accumulated amortization	(38,976)	(38,425)
Above Market Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired above market leases, net	21,780	22,201
Other intangible assets, accumulated amortization	(19,398)	(18,864)
Lease Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired lease intangible assets, net	$ 13,265	$ 17,201