INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 2,958		$ (2,546)	$ (15,812)	$ (3,210)
Effective tax rate (benefit) provision	48.40%		(26.50%)	(6.60%)	(11.30%)
CARES ACT tax benefit				$ 7,300
Goodwill impairment loss, non-deductible for tax purposes				30,500
Deferred tax asset, increase (decrease), related to goodwill impairment and net operating loss				25,600
Income Tax Contingency [Line Items]
Impairment loss	$ 0		$ 0	(191,788)	$ 0
IHT
Income Tax Contingency [Line Items]
Impairment loss		$ (191,800)		$ (191,788)