RELATED PARTY TRANSACTIONS - Selling Commissions, Dealer Manager Fees and Distribution Fees (Details)	12 Months Ended
	Dec. 31, 2019
Advisor
Related Party Transaction [Line Items]
Advisory agreement period	1 year
Dealer manager | Affiliated Entity | Distribution fees
Related Party Transaction [Line Items]
Threshold in criteria for ceased distribution fees, percent of fees and commissions paid to aggregate purchase price of shares of a class held by a stockholder	8.50%
Class T | Dealer manager | Affiliated Entity | Selling commission fees
Related Party Transaction [Line Items]
Selling commissions (as % of offering price), up to this percent	2.00%
Class T | Dealer manager | Affiliated Entity | Dealer manager fees
Related Party Transaction [Line Items]
Dealer manager fees (as % of offering price), up to this percent	2.50%
Class T | Dealer manager | Affiliated Entity | Distribution fees
Related Party Transaction [Line Items]
Distribution fees (as % of NAV per annum)	1.00%
Class W | Dealer manager | Affiliated Entity | Selling commission fees
Related Party Transaction [Line Items]
Selling commissions (as % of offering price), up to this percent	0.00%
Class W | Dealer manager | Affiliated Entity | Dealer manager fees
Related Party Transaction [Line Items]
Dealer manager fees (as % of offering price), up to this percent	0.00%
Class W | Dealer manager | Affiliated Entity | Distribution fees
Related Party Transaction [Line Items]
Distribution fees (as % of NAV per annum)	0.50%
Class I | Dealer manager | Affiliated Entity | Selling commission fees
Related Party Transaction [Line Items]
Selling commissions (as % of offering price), up to this percent	0.00%
Class I | Dealer manager | Affiliated Entity | Dealer manager fees
Related Party Transaction [Line Items]
Dealer manager fees (as % of offering price), up to this percent	0.00%
Class I | Dealer manager | Affiliated Entity | Distribution fees
Related Party Transaction [Line Items]
Distribution fees (as % of NAV per annum)	0.00%