BUSINESS COMBINATIONS - Unaudited pro forma (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
BUSINESS COMBINATIONS
Additional amortization of intangible assets and depreciation of fixed assets		$ 12,735,000
Total revenues	$ 593,622	454,208
Net (loss) income	$ (141,601)	$ 10,859