Stock Incentive Plan and Employee Stock Purchase Plan - Schedule of Option Activity Under the Company's Incentive Plan (Details) - Employee Stock Option - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Jun. 30, 2024	Jun. 30, 2023
Options Outstanding
Balance at the beginning of the year (in shares)		5,480
Options granted (in shares)		0
Options exercised (in shares)		(90)
Options forfeited/expired (in shares)		(120)
Balance at the end of the year (in shares)		5,270	5,480
Vested or expected to vest at the end of the year (in shares)		5,270
Exercisable at the end of the year (in shares)		4,792
Weighted Average Exercise Price
Balance at the beginning of the year (in dollars per share)		$ 3.4
Options granted (in dollars per share)		0	$ 0
Options exercised (in dollars per share)		2.6
Options forfeited/expired (in dollars per share)		4.19
Balance at the end of the year (in dollars per share)		3.4	$ 3.4
Vested or Expected to vest at the end of the year (in dollars per share)		3.4
Exercisable at the end of the year (in dollars per share)		$ 3.47
Weighted Average Remaining Contractual Life (In Years)
Balance		2 years 11 months 12 days	6 years 6 months 10 days
Vested or Expected to vest at the end of the year		2 years 11 months 12 days
Exercisable at the end of the year		2 years 5 months 23 days
Aggregate Intrinsic Value (in thousands)
Weighted average grant date fair value	[1]	$ 0	$ 3,580
Vested or Expected to vest at the end of the year	[1]	0
Exercisable at the end of the year	[1]	$ 0

[1] The aggregate intrinsic value represents the total pre-tax intrinsic value, which is computed based on the difference between the exercise price and the closing price of Accuray common stock of $1.82 and $3.87 on June 28, 2024 and June 30, 2023, respectively, The amount represents what would have been received by the option holders had all option holders exercised their options and sold the shares received upon exercise as of that date.