Acquisition - Summary of Provisional Fair Value Assigned to Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Sep. 30, 2024
Estimated fair value of identifiable assets acquired and liabilities assumed:
Goodwill	$ 908	$ 21,261

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details