Real Estate - Acquisition Assets and Liabilities (Details) $ in Thousands	Jul. 01, 2020 USD ($)
Business Acquisition [Line Items]
Real estate assets	$ 8,150
Cash and cash equivalents, accounts receivable, prepaid expenses and other assets, and due from related parties	5,054
Notes receivable – related party	3,900
Total Assets	227,634
Notes payable	10,593
Accounts payable and accrued expenses, and due to related parties	12,941
Unpaid preferred dividends due to Hartman XIX shareholders	3,868
Total Liabilities	27,402
Net assets acquired	200,232
Property Manager
Business Acquisition [Line Items]
Acquired intangibles	8,685
HIREIT
Business Acquisition [Line Items]
Investment acquired	2,845
Hartman SPE, LLC
Business Acquisition [Line Items]
Investment acquired	198,799
Other Affiliates
Business Acquisition [Line Items]
Investment acquired	201
HIREIT Acquisition
Business Acquisition [Line Items]
Real estate assets	3,376
Cash and cash equivalents, accounts receivable, prepaid expenses and other assets, and due from related parties	4,943
Notes receivable – related party	0
Total Assets	128,403
Notes payable	6,393
Accounts payable and accrued expenses, and due to related parties	4,466
Unpaid preferred dividends due to Hartman XIX shareholders	0
Total Liabilities	10,859
Net assets acquired	117,544
HIREIT Acquisition | Property Manager
Business Acquisition [Line Items]
Acquired intangibles	8,514
HIREIT Acquisition | HIREIT
Business Acquisition [Line Items]
Investment acquired	0
HIREIT Acquisition | Hartman SPE, LLC
Business Acquisition [Line Items]
Investment acquired	111,369
HIREIT Acquisition | Other Affiliates
Business Acquisition [Line Items]
Investment acquired	201
Hartman XIX
Business Acquisition [Line Items]
Real estate assets	4,774
Cash and cash equivalents, accounts receivable, prepaid expenses and other assets, and due from related parties	111
Notes receivable – related party	3,900
Total Assets	99,231
Notes payable	4,200
Accounts payable and accrued expenses, and due to related parties	8,475
Unpaid preferred dividends due to Hartman XIX shareholders	3,868
Total Liabilities	16,543
Net assets acquired	82,688
Hartman XIX | Property Manager
Business Acquisition [Line Items]
Acquired intangibles	171
Hartman XIX | HIREIT
Business Acquisition [Line Items]
Investment acquired	2,845
Hartman XIX | Hartman SPE, LLC
Business Acquisition [Line Items]
Investment acquired	87,430
Hartman XIX | Other Affiliates
Business Acquisition [Line Items]
Investment acquired	$ 0