| Document and Entity Information | Sep. 05, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 05, 2023 |
| Entity Registrant Name | NEXTGEN HEALTHCARE, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-12537 |
| Entity Tax Identification Number | 95-2888568 |
| Written Communications | false |
| Soliciting Material | true |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value per share |
| Trading Symbol | NXGN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000708818 |
| Amendment Flag | false |
