| Document and Entity Information | Aug. 02, 2022 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 02, 2022 |
| Entity File Number | 001-39722 |
| Entity Registrant Name | L&F ACQUISITION CORP. |
| Entity Central Index Key | 0001823575 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Tax Identification Number | 98-1557361 |
| Entity Address, Address Line One | 150 North Riverside Plaza |
| Entity Address, Address Line Two | Suite 5200 |
| Entity Address, City or Town | Chicago |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60606 |
| City Area Code | 312 |
| Local Phone Number | 705-2786 |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Units, each consisting of one Class A Ordinary Share and one-half of one redeemable warrant [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A Ordinary Share and one-half of one redeemable warrant |
| Trading Symbol | LNFA.U |
| Security Exchange Name | NYSEAMER |
| Class A Ordinary Shares, $0.0001 par value [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A Ordinary Shares, $0.0001 par value |
| Trading Symbol | LNFA |
| Security Exchange Name | NYSEAMER |
| Warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 |
| Trading Symbol | LNFA WS |
| Security Exchange Name | NYSEAMER |
