v3.25.2
Available for Sale Debt Securities - Narrative (Details)
$ in Millions
 1 Months Ended 6 Months Ended
Jan. 31, 2025
USD ($)
May 31, 2024
USD ($)
quarter
tranche
payment
Sep. 30, 2022
USD ($)
Jun. 30, 2025
USD ($)
Cytokinetics        
Debt and Equity Securities, FV-NI [Line Items]        
Long term funding partnership, amount   $ 50    
Installment repayments, percentage of amount drawn   1.5    
Cytokinetics | Development Funding        
Debt and Equity Securities, FV-NI [Line Items]        
Long term funding partnership, amount   $ 100    
Long term funding partnership, royalty installment repayments, amount   $ 100    
Long term funding partnership, royalty percentage on annual net sales   2.00%    
Number of quarters | quarter   18    
Installment repayments, percentage of amount drawn   2.4    
Cytokinetics | Development Funding | Phase 3 Trial        
Debt and Equity Securities, FV-NI [Line Items]        
Number of quarters | quarter   22    
Installment repayments, percentage of amount drawn   2.3    
Cytokinetics | Cytokinetics Commercial Launch Funding        
Debt and Equity Securities, FV-NI [Line Items]        
Long term funding partnership, amount   $ 525    
Number of additional funding tranches | tranche   2    
Long term funding partnership, number of tranches | tranche   7    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranches One, Four and Six        
Debt and Equity Securities, FV-NI [Line Items]        
Long term funding partnership, amount       $ 175
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranche 4        
Debt and Equity Securities, FV-NI [Line Items]        
Period of return (in years)   1 year    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranche 2        
Debt and Equity Securities, FV-NI [Line Items]        
Number of tranches no longer available | tranche   2    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranche 3        
Debt and Equity Securities, FV-NI [Line Items]        
Number of tranches no longer available | tranche   3    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranche 5        
Debt and Equity Securities, FV-NI [Line Items]        
Number of tranches available for draw | tranche   5    
Required future draw amount   $ 100    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranche 7        
Debt and Equity Securities, FV-NI [Line Items]        
Number of tranches available for draw | tranche   7    
Cytokinetics | Cytokinetics Commercial Launch Funding | Tranches One, Four, Five, Six, And Seven        
Debt and Equity Securities, FV-NI [Line Items]        
Installment repayments, percentage of amount drawn   1.9    
Number of consecutive quarterly payments | payment   34    
Cytokinetics | Cytokinetics Commercial Launch Funding | Cytokinetics Funding Commitments | Tranche 7        
Debt and Equity Securities, FV-NI [Line Items]        
Required future draw amount   $ 175    
MorphoSys | Development Funding        
Debt and Equity Securities, FV-NI [Line Items]        
Maximum commitment to fund collaborative arrangement     $ 300  
Development fund bond        
Debt and Equity Securities, FV-NI [Line Items]        
Proceeds from sale $ 511