| Component: (Network and Table) | |
|---|---|
| Network | 100460 - Disclosure - Balance Sheet Components - Summary of Intangible Assets (Detail) (http://www.viewray.com/20161231/taxonomy/role/DisclosureBalanceSheetComponentsSummaryOfIntangibleAssetsDetail) |
| Table | Schedule Of Finite Lived Intangible Assets [Table] |
| Reporting Entity [Axis] | 0001597313 (http://www.sec.gov/CIK) |
| Finite Lived Intangible Assets [Line Items] | Period [Axis] | |||||
|---|---|---|---|---|---|---|
2016-12-31 | 2015-12-31 | |||||
| Finite-Lived Intangible Assets by Major Class | Finite-Lived Intangible Assets by Major Class | |||||
| License Cost | Patents | Finite-Lived Intangible Assets, Major Class Name | License Cost | Patents | Finite-Lived Intangible Assets, Major Class Name | |
Intangible assets, gross | ||||||
Accumulated amortization | ( | ( | ||||
Intangible assets, net | 97,000 | 200,000 | ||||