RELATED-PARTY TRANSACTIONS - Fees and Expense Reimbursements (Details) - Affiliated Entity - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
C I M Service Provider LLC | Series A Preferred Stock
Related Party Transaction [Line Items]
Related party, shares issued (in shares)				11,273
Asset management fees
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			$ 9,030	$ 9,511
Property management fees
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			1,641	1,670
Onsite management and other cost reimbursement
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			2,687	3,356
Lease commission
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			162	112
Construction management fees
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			226	344
Base service fee
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			0	282
Expense reimbursements to related parties - corporate
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements	$ 2,050	$ 2,243
Expenses reimbursements to related parties - lending segment
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements			1,921	3,491
Upfront dealer manager and trailing dealer manager fees
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements	690	1,149
Non-issuance specific offering costs
Related Party Transaction [Line Items]
Related party, fees and expense reimbursements	106	99
Deferred costs	$ 2,000	$ 1,500	$ 2,000	$ 1,500
Investment Management Agreement | CIM Capital, LLC | Common Stock
Related Party Transaction [Line Items]
Related party, shares issued (in shares)				203,349
Investment Management Agreement | CIM Capital, LLC | Series A Preferred Stock
Related Party Transaction [Line Items]
Related party, shares issued (in shares)			270,209	287,199
Personnel Fees
Related Party Transaction [Line Items]
Deferred personnel costs			$ 347	$ 136