| Cover | Aug. 11, 2022 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 11, 2022 |
| Entity Registrant Name | Leafly Holdings, Inc. /DE |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39119 |
| Entity Tax Identification Number | 84-2266022 |
| Entity Address, State or Province | WA |
| Entity Address, City or Town | Seattle |
| Entity Address, Address Line One | 111 South Jackson Street, Suite 531 |
| Entity Address, Postal Zip Code | 98104 |
| City Area Code | 206 |
| Local Phone Number | 455-9504 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001785592 |
| Amendment Flag | false |
| Common Stock, $0.0001 Par Value | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Common Stock, $0.0001 Par Value |
| Trading Symbol | LFLY |
| Security Exchange Name | NASDAQ |
| Warrants, exercisable for shares of common stock at an exercise price of $11.50 per share | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Warrants, exercisable for shares of common stockat an exercise price of $11.50 per share |
| Trading Symbol | LFLYW |
| Security Exchange Name | NASDAQ |
