INCOME TAXES - Components of loss (income) before income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
(Loss) income before income taxes:
U.S.	$ (338,565)	$ 6,119
Non-U.S.	(13,884)
Total (loss) income before income taxes	$ (352,449)	$ 6,119

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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