Document and Entity Information - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2020 |
May 15, 2020 |
Sep. 30, 2019 |
|
| Document And Entity Information [Abstract] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | false | ||
| Document Period End Date | Mar. 31, 2020 | ||
| Document Fiscal Year Focus | 2020 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Interactive Data Current | Yes | ||
| Entity Registrant Name | e.l.f. Beauty, Inc. | ||
| Entity Central Index Key | 0001600033 | ||
| Current Fiscal Year End Date | --03-31 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | true | ||
| Entity Ex Transition Period | true | ||
| Entity Shell Company | false | ||
| Entity Common Stock, Shares Outstanding | 50,009,051 | ||
| Entity Public Float | $ 635.0 |