| Cover | Jan. 20, 2025 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 20, 2025 |
| Entity Registrant Name | TWFG, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-42177 |
| Entity Tax Identification Number | 99-0603906 |
| Entity Address, Address Line One | 10055 Grogans Mill Road |
| Entity Address, Address Line Two | Suite 500 |
| Entity Address, City or Town | The Woodlands |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77380 |
| City Area Code | 281 |
| Local Phone Number | 367-3424 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Common Stock, $0.01 par value |
| Trading Symbol | TWFG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0002007596 |
