INTANGIBLES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Intangible assets and liabilities
Indefinite lived intangibles	$ 25,028
Goodwill	1,307	$ 1,307
Total indefinite lived intangibles	26,335	1,307
Total amortizing intangibles	35,523	33,882
Amortization/accretion of intangible assets and liabilities	8,900	6,300	$ 10,500
Estimated future amortization
2018	5,000
2019	3,700
2020	2,300
2021	1,700
Thereafter	22,900
Other Intangible Asset
Intangible assets and liabilities
Gross Assets	10,278	3,038
Accumulated Amortization	(1,812)	(299)
Net Carrying Amount	8,466	2,739
Leases, Acquired-in-Place
Intangible assets and liabilities
Gross Assets	22,304	37,567
Accumulated Amortization	(11,483)	(21,552)
Net Carrying Amount	10,821	16,015
Tenant Leases above Market
Intangible assets and liabilities
Gross Assets	4,171	4,879
Accumulated Amortization	(2,523)	(2,422)
Net Carrying Amount	1,648	2,457
Tenant Leases below Market
Intangible assets and liabilities
Gross Liability	(6,454)	(6,618)
Accumulated Accretion	2,688	2,065
Net Carrying Amount	3,766	4,553
Ground Leases above Market
Intangible assets and liabilities
Indefinite lived intangible liabilities	(293)
Gross Liability		(1,955)
Accumulated Accretion		193
Net Carrying Amount	1,648	2,457
Net Carrying Amount		1,762
Ground Leases below Market
Intangible assets and liabilities
Gross Assets	23,096	23,096
Accumulated Amortization	(4,449)	(4,110)
Net Carrying Amount	$ 18,647	$ 18,986