RELATED-PARTY TRANSACTIONS AND ARRANGEMENTS (Selling Commissions and Dealer Manager Fees) (Details) - Dealer manager	Jun. 30, 2020
Selling commissions
Related Party Transaction [Line Items]
Expense reallowed (percent)	100.00%
Class A Common Stock | Dealer manager fees
Related Party Transaction [Line Items]
Commissions percentage on stock sales and related dealer manager fees	2.00%
Class A Common Stock | Maximum | Selling commissions
Related Party Transaction [Line Items]
Commissions percentage on stock sales and related dealer manager fees	7.00%
Class T Common Stock | Dealer manager fees
Related Party Transaction [Line Items]
Commissions percentage on stock sales and related dealer manager fees	2.00%
Class T Common Stock | Maximum | Selling commissions
Related Party Transaction [Line Items]
Commissions percentage on stock sales and related dealer manager fees	3.00%