| Document and Entity Information | Dec. 24, 2024 |
| Cover [Abstract] | |
| Entity Registrant Name | Duckhorn Portfolio, Inc. |
| Amendment Flag | false |
| Entity Central Index Key | 0001835256 |
| Current Fiscal Year End Date | --07-31 |
| Document Type | 8-K |
| Document Period End Date | Dec. 24, 2024 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40240 |
| Entity Tax Identification Number | 81-3866305 |
| Entity Address, Address Line One | 1201 Dowdell Lane |
| Entity Address, City or Town | Saint Helena |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94574 |
| City Area Code | (707) |
| Local Phone Number | 302-2658 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $0.01 per share |
| Trading Symbol | NAPA |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
