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Joint Venture - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023
Schedule Of Equity Method Investments [Line Items] |  |
Currency translation adjustment | $ (25) | $ (159)
Joint venture |  |
Schedule Of Equity Method Investments [Line Items] |  |
Percentage of ownership interest in joint venture | 49.00% |
Currency translation adjustment | $ 900 |
Accuray Asia |  |
Schedule Of Equity Method Investments [Line Items] |  |
Proportion of recognizing joint venture income or loss | 49.00% |

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