CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (8,918)	$ (329)	$ (187,158)	$ 239
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Foreign currency translation adjustment	147	204	586	234
Unrealized gain (loss) on restricted investment	56	0	(800)	0
Less reclassification for realized (gain) loss on restricted investment included in net income	11	0	386	0
COMPREHENSIVE INCOME (LOSS)	(8,704)	(125)	(186,986)	473
Comprehensive (income) loss attributable to noncontrolling interests	278	131	438	294
Comprehensive (income) loss attributable to redeemable noncontrolling interests	625	294	1,014	259
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO THE COMPANY	$ (7,801)	$ 300	$ (185,534)	$ 1,026