| Cover | Sep. 03, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 03, 2024 |
| Entity Registrant Name | GigaCloud Technology Inc |
| Entity Incorporation, State or Country Code | E9 |
| Entity File Number | 001-41454 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Postal Zip Code | 91731 |
| Entity Address, State or Province | CA |
| Entity Address, City or Town | El Monte |
| Entity Address, Address Line One | 4388 Shirley Ave |
| Local Phone Number | 912-8886 |
| City Area Code | 626 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A ordinary shares, par value $0.05 per share |
| Trading Symbol | GCT |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001857816 |
| NASDAQ - ALL MARKETS | |
| Document Information [Line Items] | |
| Security Exchange Name | NASDAQ |
