| Document and Entity Information | Oct. 21, 2020 |
| Cover [Abstract] | |
| Entity Registrant Name | Guild Holdings Co |
| Entity File Number | 921-11 |
| Amendment Flag | false |
| Entity Central Index Key | 0001821160 |
| Current Fiscal Year End Date | --12-31 |
| Document Type | 8-K |
| Document Period End Date | Oct. 21, 2020 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 85-2453154 |
| Entity Address, Address Line One | 5887 Copley Drive |
| Entity Address, City or Town | San Diego |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92111 |
| City Area Code | (858) |
| Local Phone Number | -560-6330 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A common stock, $0.01 par value per share |
| Trading Symbol | GHLD |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
