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	Jun. 30, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Leases, gross	$ 145	$ 183
Accumulated amortization	(1,187)	(1,031)
Below market leases	61,446	62,126
Accumulated accretion	(37,934)	(36,674)
Acquired lease intangible liabilities, net	23,512	25,452
Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired lease intangible assets, net	28,678	31,407
In-place leases
Acquired Finite-Lived Intangible Assets [Line Items]
Leases, gross	63,535	63,896
Accumulated amortization	(35,002)	(32,672)
Above market leases
Acquired Finite-Lived Intangible Assets [Line Items]
Leases, gross	7,534	7,534
Accumulated amortization	$ (7,389)	$ (7,351)