RELATED PARTY TRANSACTIONS - Additional Information (Details) $ in Thousands		3 Months Ended		8 Months Ended	9 Months Ended
	Mar. 27, 2019 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Mar. 26, 2019	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Ratio of percentage of stockholders' equity paid up to predetermined amount	0.000875			0.000875
Ratio of percentage of stockholders' equity paid over a predetermined amount	0.000625
Predetermined amount of stockholders equity used in calculating monthly management fee	$ 17,280,000
Portion of calculated stockholders' equity used to determine management fee	0.083
Compensation and management fee		$ 41,161	$ 45,983		$ 130,225	$ 136,091
Ratio of independent directors or holders of a majority of the outstanding shares					0.0066666667
Management Agreement
Compensation and management fee		41,200	$ 46,000		$ 130,200	$ 136,100
Reimbursement payments					14,300
Management fee payable		$ 12,700			$ 12,700		$ 16,000
Renewal term					2 years
Accelerated period for agreement termination, if election to terminate is not made					90 days
Management Agreement | Minimum
Accelerated period for agreement termination, if election to terminate is made					7 days
Management Agreement | Maximum
Accelerated period for agreement termination, if election to terminate is made					90 days