RELATED-PARTY TRANSACTIONS AND ARRANGEMENTS (Schedule of Related Party Transaction) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Related Party Transaction
Due to affiliates	$ 13,577		$ 13,826
Advisors \| Upfront selling commissions
Related Party Transaction
Related party transaction, expenses from transactions with related party	4	$ 323
Advisors \| Stockholder servicing fees
Related Party Transaction
Related party transaction, expenses from transactions with related party	607	633
Advisors \| Dealer manager fees
Related Party Transaction
Related party transaction, expenses from transactions with related party	1	56
Advisors \| Organization and offering expense reimbursement
Related Party Transaction
Related party transaction, expenses from transactions with related party	36	149
Advisors \| Acquisition expense reimbursement
Related Party Transaction
Related party transaction, expenses from transactions with related party	212	89
Advisors \| Advisory fee
Related Party Transaction
Related party transaction, expenses from transactions with related party	1,497	1,740
Advisors \| Operating expense reimbursement
Related Party Transaction
Related party transaction, expenses from transactions with related party	372	166
Dealer manager
Related Party Transaction
Due to affiliates	$ 11,400	$ 13,300	$ 11,900

CIM INCOME NAV, INC. 10-Q