| Document and Entity Information | May 14, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 14, 2024 |
| Entity Registrant Name | Nextracker Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-41617 |
| Entity Tax Identification Number | 36-5047383 |
| Entity Address, Address Line One | 6200 Paseo Padre Parkway |
| Entity Address, City or Town | Fremont |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94555 |
| City Area Code | (510) |
| Local Phone Number | 270-2500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Common Stock, par value $0.0001 |
| Trading Symbol | NXT |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001852131 |
