| Document And Entity Information | Sep. 27, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | DOMA HOLDINGS, INC. |
| Current Fiscal Year End Date | --12-31 |
| Document, Type | 8-K |
| Document, Period End Date | Sep. 27, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-39754 |
| Entity, Tax Identification Number | 84-1956909 |
| Entity, Address, Address Line One | 201 Spear St. |
| Entity, Address, Address Line Two | Suite 06-106 |
| Entity, Address, City or Town | San Francisco |
| Entity, Address, State or Province | CA |
| Entity, Address, Postal Zip Code | 94105 |
| City Area Code | 650 |
| Local Phone Number | 419-3827 |
| 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 |
| Amendment Flag | false |
| Entity, Central Index Key | 0001722438 |
| CommonStockParValue00001PerShare Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | DOMA |
| Security Exchange Name | NYSE |
| WarrantsToPurchaseCommonStock Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants to purchase common stock |
| Trading Symbol | DOMAW |
