Joint Venture - Additional Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Schedule Of Equity Method Investments [Line Items]
Currency translation adjustment	$ (9,000)	$ (159,000)
Impairment of goodwill	$ 0	0	$ 0
Joint venture
Schedule Of Equity Method Investments [Line Items]
Percentage of ownership interest in joint venture	49.00%
Dividend declared	$ 2,500,000
Currency translation adjustment	$ 600,000
Accuray Asia
Schedule Of Equity Method Investments [Line Items]
Proportion of recognizing joint venture income (loss)	49.00%
Impairment of goodwill	$ 0	$ 0