INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Valuation Allowance [Line Items]
Provision (benefit) for income taxes	$ (8,922)	$ (2,958)	$ (9,424)	$ 15,812
Effective tax rate (benefit) provision	10.90%	48.40%	7.10%	(6.60%)
Goodwill impairment loss, non-deductible for tax purposes			$ 55,800
Foreign Tax Authority
Valuation Allowance [Line Items]
Valuation allowance related to net deferred tax assets	$ 5,600		$ 5,600