FAIR VALUE MEASUREMENTS (Unrealized Gain Position) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair value of marketable equity securities, Carrying Amount	$ 0	$ 10,582
Fair value of marketable securities, Less then 12 Months	0	10,582
Fair value of marketable securities, 12 Months or Greater	0	0
Fair value of marketable securities, Total	0	10,582
Unrealized (losses) gains, Carrying Amount	0	0
Unrealized (losses) gains, Less than 12 Months	0	3,043
Unrealized (losses) gains, 12 Months or Greater	0	0
Unrealized (losses) gains, Total	$ 0	$ 3,043