| Cover | Dec. 16, 2022 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 16, 2022 |
| Entity File Number | 001-40081 |
| Entity Registrant Name | FIGURE ACQUISITION CORP. I |
| Entity Central Index Key | 0001839550 |
| Entity Tax Identification Number | 85-4326385 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 650 California Street |
| Entity Address, Address Line Two | Suite 2700 |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94108 |
| City Area Code | 628 |
| Local Phone Number | 210-6937 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Class A [Member] | |
| Title of 12(b) Security | Class A common stock, par value $0.01 per share |
| Trading Symbol | FACA |
| Security Exchange Name | NYSE |
| Redeemable Warrants [Member] | |
| Title of 12(b) Security | Redeemable warrants, each one whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 |
| Trading Symbol | FACA.WS |
| Security Exchange Name | NYSE |
| Public Shares [Member] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock and one-fourth of one redeemable warrant |
| Trading Symbol | FACA.U |
| Security Exchange Name | NYSE |
