NOTES PAYABLE - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Notes Payable [Abstract]
Interest expense	$ 849	$ 2,482	$ 3,737	$ 4,458
Interest payable, current	300		300		$ 400
Amortization of deferred financing costs	100	100	163	178
Interest Rate Swaps
Derivative [Line Items]
Unrealized gain (loss) on derivatives	$ 200	$ 1,100	$ 2,100	$ 1,700