| Cover | Oct. 12, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 12, 2021 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-38880 |
| Entity Registrant Name | Whole Earth Brands, Inc. |
| Entity Central Index Key | 0001753706 |
| Entity Tax Identification Number | 38-4101973 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 125 S. Wacker Drive |
| Entity Address, Address Line Two | Suite 3150 |
| 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 | 840-6000 |
| 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 Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | FREE |
| Security Exchange Name | NASDAQ |
| Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one-half of one share of common stock |
| Trading Symbol | FREEW |
| Security Exchange Name | NASDAQ |
