| Document and Entity Information | Aug. 12, 2021 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001777835 |
| Document Type | 8-K |
| Document Period End Date | Aug. 12, 2021 |
| Entity Registrant Name | PERELLA WEINBERG PARTNERS |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39558 |
| Entity Tax Identification Number | 84-1770732 |
| Entity Address, Address Line One | 767 Fifth Avenue |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10153 |
| City Area Code | (212) |
| Local Phone Number | 287-3200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A common stock, par value $0.0001 per share |
| Trading Symbol | PWP |
| Security Exchange Name | NASDAQ |
| Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each whole warrant exercisable for one share of Class A common stock |
| Trading Symbol | PWPPW |
| Security Exchange Name | NASDAQ |
