v3.25.2
Available for Sale Debt Securities - Summary of the Components of Funding Arrangement (Details) - USD ($)
$ in Thousands
 1 Months Ended
May 31, 2024
Jun. 30, 2025
Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]      
Funded   $ 257,900 $ 739,620
Cytokinetics      
Debt and Equity Securities, FV-NI [Line Items]      
Funded   375,000  
Potential Future Draw   425,000  
Total   800,000  
Optional additional amount $ 150,000    
Cytokinetics | Cytokinetics Commercial Launch Funding      
Debt and Equity Securities, FV-NI [Line Items]      
Funded   175,000  
Potential Future Draw   275,000  
Total   450,000  
Cytokinetics | Cytokinetics Development Funding      
Debt and Equity Securities, FV-NI [Line Items]      
Funded   100,000  
Potential Future Draw   0  
Total   100,000  
Cytokinetics | Cytokinetics R&D Funding Derivative      
Debt and Equity Securities, FV-NI [Line Items]      
Funded   50,000  
Potential Future Draw   150,000  
Total   200,000  
Cytokinetics | Cytokinetics Common Stock      
Debt and Equity Securities, FV-NI [Line Items]      
Funded   50,000  
Potential Future Draw   0  
Total   $ 50,000  
Cytokinetics | Research and Development Funding      
Debt and Equity Securities, FV-NI [Line Items]      
Optional additional amount $ 150,000