INCOME TAXES - Provision (benefit) for income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Current:
Federal	$ 4,490	$ 61
State and local	967	496
Foreign	944	1,674
Deferred:
Federal	(20,560)	(12,494)
State and local	(4,807)	(4,911)
Foreign	(374)	(13)
Income tax benefit	$ (19,340)	$ (15,187)