DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reassessed Estimated Fair Value of Award	$ 25,600				$ 27,000				$ 25,600	$ 27,000
Operating expense	$ 34,533	$ 3,968	$ 20,382	$ (27,287)	$ 12,062	$ 31,117	$ 29,121	$ 14,796	31,596	87,096
Selling, General and Administrative Expenses | Employment Agreement Award [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Operating expense									$ 2,300	$ 4,900