| Cover Page | Mar. 09, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Mar. 9, 2022 |
| Entity Registrant Name | Credo Technology Group Holding Ltd |
| Entity Incorporation, State or Country Code | E9 |
| Entity File Number | 001-41249 |
| Entity Address, Address Line One | Maples Corporate Services, Limited |
| Entity Address, Address Line Two | PO Box 309, Ugland House |
| Entity Address, City or Town | Grand Cayman |
| Entity Address, Postal Zip Code | KY1-1104 |
| Entity Address, Country | KY |
| City Area Code | 408 |
| Local Phone Number | 664-9329 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary shares, par value $0.00005 per share |
| Trading Symbol | CRDO |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001807794 |
| Amendment Flag | false |
