v3.25.1
Joint Venture (Details) - USD ($)
1 Months Ended
May 10, 2023
Feb. 28, 2019
6.0% Notes Due 2026 | Unsecured Debt    
Schedule of Equity Method Investments [Line Items]    
Interest rate 6.00%  
Songhua River Investment Limited | 6.0% Notes Due 2026    
Schedule of Equity Method Investments [Line Items]    
Proceeds from debt, net of issuance costs $ 14,700,000  
Roblox China Holding Corp    
Schedule of Equity Method Investments [Line Items]    
Equity method investment ownership percentage   51.00%
Roblox China Holding Corp | 6.0% Notes Due 2026    
Schedule of Equity Method Investments [Line Items]    
Proceeds from debt, net of issuance costs 15,300,000  
Roblox China Holding Corp | 6.0% Notes Due 2026 | Unsecured Debt    
Schedule of Equity Method Investments [Line Items]    
Debt instrument, aggregated principal amount $ 30,000,000  
Debt instrument, term of maturity date extension 2 years  
Roblox China Holding Corp | Songhua River Investment Limited    
Schedule of Equity Method Investments [Line Items]    
Minority interest percentage in joint venture   49.00%
Roblox China Holding Corp | Songhua River Investment Limited    
Schedule of Equity Method Investments [Line Items]    
Contribution by non controlling interest to the joint venture   $ 50,000,000.0