INTANGIBLE ASSETS AND GOODWILL (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 23, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of Reporting Units	1
Net Assets	$ 132,900
Amortization of Finite-Lived Intangible Assets	0	$ 4,400	$ 9,300
Goodwill and intangible assets impairments [Abstract]
Goodwill	$ 32,643	$ 32,643
Business Combination, Recognized Goodwill				$ 32,600