GOODWILL AND INTANGIBLE ASSETS - Intangible Assets, net by major class (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Finite-Lived intangible assets
Carrying Amount, Gross	$ 377,994	$ 380,699
Accumulated Amortization	(69,566)	(34,813)
Totals	308,428	345,886
Customer relationships
Finite-Lived intangible assets
Carrying Amount, Gross	316,820	318,896
Accumulated Amortization	(54,711)	(26,990)
Totals	262,109	291,906
Intellectual property
Finite-Lived intangible assets
Carrying Amount, Gross	56,337	56,997
Accumulated Amortization	(12,234)	(5,767)
Totals	44,103	51,230
Other
Finite-Lived intangible assets
Carrying Amount, Gross	4,837	4,806
Accumulated Amortization	(2,621)	(2,056)
Totals	$ 2,216	$ 2,750