ACQUISITIONS AND DISPOSITIONS - Dispositions (Details) - Disposed of by Sale $ in Thousands	3 Months Ended
	Mar. 31, 2020 property	Mar. 31, 2019 USD ($) property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property	0
Gain/(Loss)		$ (156)
Sale Price		3,049
Book Value and Sales Cost		$ 3,205
Unimproved Land
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property		1
Sale Price		$ 3,000
Unimproved Land | Creekside Crossing - Bismarck, ND
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain/(Loss)		(156)
Sale Price		3,049
Book Value and Sales Cost		$ 3,205