OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Accrued capital costs	$ 4,817	$ 17,035
Accrued taxes other than income	3,733	689
Accrued operations and maintenance expense	1,380	1,520
Accrued professional and consulting fees	1,288	158
Accrued incentive compensation	376	1,425
Accrued finance lease liability	0	1,989
Other	1,134	1,109
Total other current liabilities	$ 12,728	$ 23,925