BUSINESS COMBINATIONS - Final determination of fair value of assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Assets acquired and liabilities assumed:
Goodwill	$ 94,286	$ 94,286	$ 157,825
Protypia, Inc.
Assets acquired and liabilities assumed:
Goodwill	6,002
Intangible assets	5,600
Other liabilities, net	(84)
Deferred tax liabilities	(652)
Total	$ 10,866