| Cover Page Document | Jan. 29, 2020 |
| Cover Page [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 29, 2020 |
| Entity Registrant Name | Mellanox Technologies, Ltd. |
| Entity Incorporation, State or Country Code | L3 |
| Entity File Number | 001-33299 |
| Entity Tax Identification Number | 98-0233400 |
| Entity Address, Address Line One | Beit Mellanox |
| Entity Address, City or Town | Yokneam |
| Entity Address, Country | IL |
| Entity Address, Postal Zip Code | 20692 |
| City Area Code | 972-4 |
| Local Phone Number | 909-7200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary Shares, nominal value NIS 0.0175 per share |
| Trading Symbol | MLNX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001356104 |
| Amendment Flag | false |
