EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
401(k) Plan [Member]
Employee Benefit Plans [Abstract]
Contributions to the plan	$ 0.5	$ 1.6	$ 1.6
Foreign Plan [Member]
Employee Benefit Plans [Abstract]
Contributions to international employees retirement and post-employment plans	$ 1.4	$ 1.3	$ 1.7