INCOME TAXES (Schedule of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ (819)	$ 25,785	$ 0
State	384	5,069	35
Foreign	560	354	86
Total current tax	125	31,208	121
Deferred:
Federal	(10,032)	(28)	106
State	(6,491)	15	13
Foreign	1,054	296	1,145
Total deferred tax	(15,469)	283	1,264
Total (benefit from) provision for income taxes	$ (15,344)	$ 31,491	$ 1,385