| Submission | Oct. 31, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0000851310 |
| Registrant Name | HARMONIC INC |
| Form Type | S-8 |
| Submission Type | S-8 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings | Oct. 31, 2024 USD ($) shares |
| Offering: 1 | |
| Offering: | |
| Fee Previously Paid | false |
| Other Rule | true |
| Security Type | Equity |
| Security Class Title | common stock |
| Amount Registered | shares | 400,000 |
| Proposed Maximum Offering Price per Unit | 12.82 |
| Maximum Aggregate Offering Price | $ 5,128,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 785.10 |
| Offering Note | Rule 457(c) |
| Offering: 2 | |
| Offering: | |
| Fee Previously Paid | false |
| Other Rule | true |
| Security Type | Equity |
| Security Class Title | common stock |
| Amount Registered | shares | 5,000,000 |
| Proposed Maximum Offering Price per Unit | 15.08 |
| Maximum Aggregate Offering Price | $ 75,400,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 11,543.74 |
| Offering Note | Rule(457c) |
| Fees Summary | Oct. 31, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 80,528,000 |
| Total Fee Amount | 12,328.84 |
| Total Offset Amount | 0 |
| Net Fee | $ 12,328.84 |
