INCOME TAXES - Schedule of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ (630)	$ (1,136)	$ 2,162
State	179	1,469	5,358
Total current	(451)	333	7,520
Deferred:
Federal	432	42,886	(172,048)
State	(28)	(3,565)	(10,726)
Total deferred	404	39,321	(182,774)
Total income tax (benefit) expense	$ (47)	$ 39,654	$ (175,254)