CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (14,140)	$ (6,591)	$ (201,298)	$ (6,352)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Foreign currency translation adjustment	(1,170)	(116)	(584)	119
Unrealized gain (loss) on restricted investment	(214)	0	(1,014)	0
Less reclassification for realized (gain) loss on restricted investment included in net income	0	0	386	0
COMPREHENSIVE INCOME (LOSS)	(15,524)	(6,707)	(202,510)	(6,233)
Comprehensive (income) loss attributable to noncontrolling interests	319	101	757	395
Comprehensive (income) loss attributable to redeemable noncontrolling interests	739	350	1,753	609
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO THE COMPANY	$ (14,466)	$ (6,256)	$ (200,000)	$ (5,229)