| Document and Entity Information | Aug. 03, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 3, 2021 |
| Entity Registrant Name | CORSAIR GAMING, INC. |
| Entity Central Index Key | 0001743759 |
| Entity Emerging Growth Company | false |
| Security 12b Title | Common Stock, $0.0001 par value per share |
| Trading Symbol | CRSR |
| Security Exchange Name | NASDAQ |
| Entity File Number | 001-39533 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 82-2335306 |
| Entity Address, Address Line One | 47100 Bayside Pkwy |
| Entity Address, City or Town | Fremont |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94538 |
| City Area Code | (510) |
| Local Phone Number | 657-8747 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
