{"cik":1315098,"taxonomy":"us-gaap","tag":"LongTermDebt","label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"Roblox Corporation","units":{"USD":[{"end":"2021-12-31","val":1329698000,"accn":"0001315098-22-000058","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-25","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1290620000,"accn":"0001315098-23-000035","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1251870000,"accn":"0001315098-24-000026","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-21","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1213120000,"accn":"0001315098-25-000033","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-18","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1174370000,"accn":"0001315098-26-000024","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-11","frame":"CY2025Q4I"}]}}