REAL ESTATE INVESTMENTS - Summary of Acquisitions (Details) - USD ($) $ in Thousands	Oct. 13, 2017	Jul. 28, 2017
Bulletin Building
Building and improvements	$ 30,583
Construction-in-progress	672
Intangible assets acquired	10,575
Below market lease liabilities assumed	(4,055)
Total encumbered acquisition value	$ 37,775
3000 Market Street
Building and improvements		$ 32,004
Intangible assets acquired		2,562
Below market lease liabilities assumed		(1,818)
Total encumbered acquisition value		$ 32,748
Intangible Assets Acquired \| Bulletin Building
Weighted average amortization period	7 years 10 months 24 days
Intangible Assets Acquired \| 3000 Market Street
Weighted average amortization period		5 years 10 months 24 days
Below Market Lease \| Bulletin Building
Weighted average amortization period	7 years
Below Market Lease \| 3000 Market Street
Weighted average amortization period		6 years

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- Definition

Business combination recognized identifiable assets acquired and liabilities assumed construction in progress.

+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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