| Cover - USD ($) | 12 Months Ended | ||
| Dec. 31, 2020 | Mar. 11, 2021 | Jun. 30, 2020 | |
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | false | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Document Period End Date | Dec. 31, 2020 | ||
| Document Fiscal Period Focus | FY | ||
| Document Fiscal Year Focus | 2020 | ||
| 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 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | true | ||
| Elected Not To Use the Extended Transition Period | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 273,788,219 | ||
| Entity Common Stock, Shares Outstanding | 38,426,669 | ||
| ICFR Auditor Attestation Flag | 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 |
