| Cover | Sep. 10, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 10, 2021 |
| Entity File Number | 001-39142 |
| Entity Registrant Name | PORCH GROUP, INC. |
| Entity Central Index Key | 0001784535 |
| Entity Tax Identification Number | 83-2587663 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 2200 1st Avenue South |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Seattle |
| Entity Address, State or Province | WA |
| Entity Address, Postal Zip Code | 98134 |
| City Area Code | 855 |
| Local Phone Number | 767-2400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.0001 |
| Trading Symbol | PRCH |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
