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BUSINESS AND ORGANIZATION (Details) |  |  |  | 2 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 11, 2017 shares | Dec. 31, 2015 shares | Jun. 24, 2015 $ / shares shares | Jul. 20, 2016 shares | Dec. 31, 2015 shares | Dec. 31, 2019 USD ($) property $ / shares shares | Dec. 31, 2018 USD ($) $ / shares shares | Feb. 01, 2020 $ / shares | Jan. 31, 2020 $ / shares | Dec. 23, 2019 USD ($) | Jan. 14, 2019 $ / shares | Jan. 19, 2018 $ / shares | Jul. 15, 2015 USD ($)
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issued common stock (in shares) |  |  |  |  |  | 450,000,000 |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  | 50,000,000 | 50,000,000 |  |  |  |  |  |
Preferred stock (in usd per share) | $ / shares |  |  |  |  |  | $ 0.001 | $ 0.001 |  |  |  |  |  |
Issuance of common stock in offerings | $ |  |  |  |  |  | $ 40,908,373 | $ 50,101,989 |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  | 45 |  |  |  |  |  |  |
REIT I |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties acquired | property |  |  |  |  |  | 20 |  |  |  |  |  |  |
Tenant-in-common | Real Estate Investment |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership (as a percent) |  |  |  |  |  | 72.70% |  |  |  |  |  |  |
Common Class S |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock (in usd per share) | $ / shares |  |  |  |  |  | $ 0.001 | $ 0.001 |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  |  | 100,000,000 | 100,000,000 |  |  |  |  |  |
Issuance of common stock in offering (in shares) | 100,000,000 |  |  |  |  | 186,606 |  |  |  |  |  |  |
Net asset value (in usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 10.16 | $ 10.05 |
Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock (in usd per share) | $ / shares |  |  |  |  |  | $ 0.001 | $ 0.001 |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  |  | 300,000,000 | 300,000,000 |  |  |  |  |  |
Common stock subscriptions | $ |  |  |  |  |  |  |  |  |  | $ 800,000,000 |  |  |
Common Class C | REIT I |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in merger (in shares) |  |  |  |  |  | 8,042,221.6 |  |  |  |  |  |  |
Common Class C | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  |  |  | 500 |  |  |  |  |  |  |  |  |
Distribution Reinvestment Plan | Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock subscriptions | $ |  |  |  |  |  |  |  |  |  | 75,000,000 |  |  |
Primary Offering |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock subscriptions | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 90,000,000
Follow-on Offering | Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock subscriptions | $ |  |  |  |  |  |  |  |  |  | $ 725,000,000 |  |  |
Registered Offering |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock subscriptions | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000
Registered Offering | Common Class S |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  |  |  |  |  | 2,293 |  |  |  |  |  |  |
Issuance of common stock in offerings | $ |  |  |  |  |  | $ 1,893,827 |  |  |  |  |  |  |
Registered Offering | Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  |  |  |  |  | 17,887,949 |  |  |  |  |  |  |
Issuance of common stock in offerings | $ |  |  |  |  |  | $ 179,698,905 |  |  |  |  |  |  |
Registered Offering | Distribution Reinvestment Plan | Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  |  |  |  |  | 1,527,839 |  |  |  |  |  |  |
Sponsor |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  | 10,000 | 10,000 |  |  |  |  |  |  |  |  |  |
Shares issued (in usd per share) | $ / shares |  |  | $ 10.00 |  |  |  |  |  |  |  |  |  |
Sponsor | Common Class C |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in offering (in shares) |  |  |  |  | 20,000 | 10,740 |  |  |  |  |  |  |
Subsequent Event | Common Class S |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net asset value (in usd per share) | $ / shares |  |  |  |  |  |  |  | $ 10.27 | $ 10.16 |  |  |  |
Retail |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  | 20 |  |  |  |  |  |  |
Retail | REIT I |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties acquired | property |  |  |  |  |  | 11 |  |  |  |  |  |  |
Office |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  | 16 |  |  |  |  |  |  |
Office | REIT I |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties acquired | property |  |  |  |  |  | 6 |  |  |  |  |  |  |
Industrial Property |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  | 9 |  |  |  |  |  |  |
Industrial Property | REIT I |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties acquired | property |  |  |  |  |  | 3 |  |  |  |  |  |  |
Land |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  | 1 |  |  |  |  |  |  |
BrixInvest | Class M OP Units |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Other ownership interests, units issued (in shares) |  |  |  |  |  | 657,949.5 |  |  |  |  |  |  |
Operating Partnership |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 99.00% |  |  |  |  |  |  |
Remaining ownership interest ( as a percent) |  |  |  |  |  | 1.00% |  |  |  |  |  |  |
Daisho OP Holdings, LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 87.00% |  |  |  |  |  |  |
BrixInvest |  |  |  |  |  |  |  |  |  |  |  |  |
Business And Organization [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  | 12.00% |  |  |  |  |  |  |

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