| Cover Cover | Nov. 17, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 17, 2020 |
| Entity Registrant Name | VAREX IMAGING CORPORATION |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-37860 |
| Entity Tax Identification Number | 81-3434516 |
| Entity Address, Address Line One | 1678 S. Pioneer Road |
| Entity Address, City or Town | Salt Lake City |
| Entity Address, State or Province | UT |
| Entity Address, Postal Zip Code | 84104 |
| City Area Code | 801 |
| Local Phone Number | 972-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | VREX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001681622 |
| Amendment Flag | false |
