REVENUE RECOGNITION - Schedule of Contract Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 36,811	$ 31,682	$ 32,132
Contract assets, current	12,687	15,818	18,355
Contract assets, non-current	1,405	3,620	5,579
Contract liabilities (deferred revenue), current	29,061	21,231	17,360
Contract liabilities (deferred revenue), non-current	$ 1,085	$ 753	$ 957