INCOME TAXES - Components of the Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Current:
Federal	$ (15,466)	$ 15,431	$ 21,745
Foreign	772	1,495	732
State	725	523	3,365
Total current benefit	(13,969)	17,449	25,842
Deferred:
Federal	(81,760)	(127,096)	(35,809)
Foreign	4,106	(12,390)	2,804
State	(12,098)	(18,069)	(11,549)
Total deferred benefit	(89,752)	(157,555)	(44,554)
Total benefit	$ (103,721)	$ (140,106)	$ (18,712)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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