{"cik":2021728,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"Cerebras Systems Inc.","units":{"USD/shares":[{"start":"2025-01-01","end":"2025-03-31","val":-0.46,"accn":"0001628280-26-044981","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-06-24","frame":"CY2025Q1"},{"start":"2026-01-01","end":"2026-03-31","val":-0.22,"accn":"0001628280-26-044981","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-06-24","frame":"CY2026Q1"}]}}