| Cover | Jan. 28, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 28, 2021 |
| Entity File Number | 001-36027 |
| Entity Registrant Name | MIX TELEMATICS LIMITED |
| Entity Incorporation, State or Country Code | T3 |
| Entity Address, Address Line One | 750 Park of Commerce Blvd |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Boca Raton |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33487 |
| City Area Code | (887) |
| Local Phone Number | 585-1088 |
| Title of 12(b) Security | American Depositary Shares, each representing 25 Ordinary Shares, no par value |
| Trading Symbol | MIXT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001576914 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
