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BUSINESS COMBINATIONS - Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Business Acquisition [Line Items] |  |
Goodwill | $ 123,548 | $ 115,632
ID R&D |  |
Business Acquisition [Line Items] |  |
Accounts receivable | 173 |
Property, plant, and equipment | 114 |
Other current assets | 147 |
Intangible assets | 16,930 |
Goodwill | 27,748 |
Current liabilities | (425) |
Deferred revenue | 0 |
Deferred income tax liabilities | (2,355) |
Net assets acquired | 42,332 |
HooYu |  |
Business Acquisition [Line Items] |  |
Accounts receivable | 1,234 |
Property, plant, and equipment | 504 |
Other current assets | 630 |
Intangible assets | 73,100 |
Goodwill | 74,206 |
Current liabilities | (2,264) |
Deferred revenue | (2,612) |
Deferred income tax liabilities | (16,896) |
Net assets acquired | $ 127,902 |

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