| Cover | Feb. 24, 2025 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 24, 2025 |
| Entity File Number | 001-41012 |
| Entity Registrant Name | FINNOVATE ACQUISITION CORP. |
| Entity Central Index Key | 0001857855 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 265 Franklin Street |
| Entity Address, Address Line Two | Suite 1702 |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02110 |
| City Area Code | 424 |
| Local Phone Number | 253-0908 |
| Written Communications | false |
| Soliciting Material | true |
| 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 |
| Units, each consisting of one Class A ordinary share and three-quarters of one redeemable warrant | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share and three-quarters of one redeemable warrant |
| Trading Symbol | FNVTU |
| Security Exchange Name | NASDAQ |
| Class A ordinary shares, par value $0.0001 per share | |
| Title of 12(b) Security | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | FNVT |
| Security Exchange Name | NASDAQ |
| Redeemable warrants, each warrant exercisable for one Class A ordinary share at an exercise price of $11.50 | |
| Title of 12(b) Security | Redeemable warrants, each warrant exercisable for one Class A ordinary share at an exercise price of $11.50 |
| Trading Symbol | FNVTW |
| Security Exchange Name | NASDAQ |
