Cover
| Cover | Jun. 20, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 20, 2024 |
| Entity File Number | 001-42135 |
| Entity Registrant Name | LIONHEART HOLDINGS |
| Entity Central Index Key | 0002015955 |
| Entity Tax Identification Number | 98-1778167 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 4218 NE 2nd Avenue, |
| Entity Address, City or Town | Miami |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33137 |
| City Area Code | 305 |
| Local Phone Number | 573-3900 |
| 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 |
| Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant |
| Trading Symbol | CUBWU |
| 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 | CUB |
| Security Exchange Name | NASDAQ |
| Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share |
| Trading Symbol | CUBWW |
| Security Exchange Name | NASDAQ |