INCOME TAXES - Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ (5,542)	$ 20,751	$ 38,481
State	(1,359)	11,685	17,836
Total current	(6,901)	32,436	56,317
Deferred:
Federal	(54,886)	(837)	(37,678)
State	(22,092)	5,607	(22,792)
Total deferred	(76,978)	4,770	(60,470)
Total income taxes (benefit)	$ (83,879)	$ 37,206	(4,153)
Tax expense from discontinued operations			$ 700