| Component: (Network and Table) | |
|---|---|
| Network | 41404 - Disclosure - Defined Benefit Pension Obligation - Assumptions (Details) (http://www.accuray.com/role/DisclosureDefinedBenefitPensionObligationAssumptionsDetails) |
| Table | Schedule of Defined Benefit Plans Disclosures [Table] |
| Reporting Entity [Axis] | 0001138723 (http://www.sec.gov/CIK) |
| Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] | Defined benefit pension plan |
| Defined Benefit Pension Obligation | Period [Axis] | ||
|---|---|---|---|
2015-07-01 - 2016-06-30 | 2014-07-01 - 2015-06-30 | 2013-07-01 - 2014-06-30 | |
Net Periodic Benefit Costs: | |||
Discount rate (as a percent) | |||
Rate of compensation increase (as a percent) | |||
Expected long-term return on assets (as a percent) | |||
Benefit Obligation: | |||
Discount rate (as a percent) | |||
Rate of compensation increase (as a percent) | |||