| Document and Entity Information | Dec. 06, 2021 |
| Document And Entity Information [Line Items] | |
| Entity Incorporation State Country Code | DE |
| Amendment Flag | false |
| Entity Central Index Key | 0001823945 |
| Document Type | 8-K |
| Document Period End Date | Dec. 6, 2021 |
| Entity Registrant Name | BLUE OWL CAPITAL INC. |
| Entity File Number | 001-39653 |
| Entity Tax Identification Number | 86-3906032 |
| Entity Address, Address Line One | 399 Park Avenue |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10022 |
| City Area Code | (212) |
| Local Phone Number | 419-3000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Equity Interest Consideration [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A Shares |
| Trading Symbol | OWL |
| Security Exchange Name | NYSE |
| Warrants To Purchase Class A Shares [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants to purchase Class A Shares |
| Trading Symbol | OWL.WS |
| Security Exchange Name | NYSE |
