| Document and Entity Information | Jun. 28, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 28, 2024 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-40982 |
| Entity Registrant Name | HireRight Holdings Corp |
| Entity Central Index Key | 0001859285 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 83-1092072 |
| Entity Address, Address Line One | 100 Centerview Drive |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Nashville |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37214 |
| City Area Code | 615 |
| Local Phone Number | 320-9800 |
| Title of 12(b) Security | Common stock, par value $0.001 per share |
| Trading Symbol | HRT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
