| Submission | Oct. 31, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0001802665 |
| Registrant Name | Harmony Biosciences Holdings, Inc. |
| Registration File Number | 333-260905 |
| Form Type | S-3 |
| Submission Type | 424B7 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Oct. 31, 2024 USD ($) shares |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Equity |
| Security Class Title | Common Stock, $0.00001 par value per share |
| Amount Registered | shares | 9,200,000 |
| Proposed Maximum Offering Price per Unit | 31 |
| Maximum Aggregate Offering Price | $ 285,200,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 43,664.12 |
| Offering Note | (1) Pursuant to Rule 416 of the Securities Act of 1933, as amended (the "Securities Act"), the registrant's registration statement on Form S-3ASR, filed with the Securities and Exchange Commission on November 9, 2021 (Registration No. 333-260905) (the "Registration Statement"), also covers any additional shares of Common Stock which become issuable in connection with any stock dividend, stock split, recapitalization or other similar transactions with respect to the securities being registered pursuant to that registration statement. (2) Includes 1,200,000 shares of Common Stock that the underwriters have an option to purchase. (3) In connection with the registration of the common stock, a registration fee of $43,664.12 was calculated in accordance with Rule 456(b) and Rule 457(r) under the Securities Act. This "Calculation of Registration Fee" table shall be deemed to update the "Calculation of Registration Fee" table in the Registration Statement with respect to the securities offered hereby. |
| Fees Summary | Oct. 31, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 285,200,000 |
| Previously Paid Amount | 0 |
| Total Fee Amount | 43,664.12 |
| Total Offset Amount | $ 0 |
| Narrative Disclosure | |
| Net Fee | $ 43,664.12 |
| Narrative - Max Aggregate Offering Price | $ 285,200,000 |
| Final Prospectus | true |
