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BUSINESS COMBINATIONS - Fair value of assets acquired and liabilities assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023	Jul. 07, 2022
Assets acquired and liabilities assumed:
Goodwill	$ 94,286	$ 94,286
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