GOODWILL AND INTANGIBLE ASSETS - Intangible Assets, net by major class (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Finite-Lived intangible assets
Carrying Amount, Gross	$ 378,951	$ 377,994
Accumulated Amortization	(104,555)	(69,566)
Totals	274,396	308,428
Customer relationships
Finite-Lived intangible assets
Carrying Amount, Gross	317,672	316,820
Accumulated Amortization	(82,683)	(54,711)
Totals	234,989	262,109
Intellectual property
Finite-Lived intangible assets
Carrying Amount, Gross	56,442	56,337
Accumulated Amortization	(18,718)	(12,234)
Totals	37,724	44,103
Other
Finite-Lived intangible assets
Carrying Amount, Gross	4,837	4,837
Accumulated Amortization	(3,154)	(2,621)
Totals	$ 1,683	$ 2,216