v3.25.3
Commitments and Contingencies (Details) - USD ($)
 12 Months Ended
Sep. 21, 2023
Mar. 18, 2019
Aug. 06, 2013
Dec. 31, 2024
Loss Contingencies [Line Items]        
Royality payment arrangement event to transfer consideration       In consideration of the license and rights granted by Shah Investor, Semnur agreed to pay royalties (i) at the rate of 1.5% of the Net Sales for Annual Net Sales (each as defined therein) up to $250,000,000 and (ii) at the rate of 2.5% of the Net Sales for Annual Net Sales of $250,000,000 and above,
Principal amount $ 101,900,000      
Senior Secured Promissory Note [Member]        
Loss Contingencies [Line Items]        
Debt instrument, face amount $ 101,875,000,000      
Legacy Semnur Merger Agreement [Member]        
Loss Contingencies [Line Items]        
Asset acquisition, contingent consideration arrangements, Cumulative net sales threshold   $ 250,000,000    
Legacy Semnur Merger Agreement [Member] | Milestones Achievement [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements range of outcomes value high   280,000,000    
Legacy Semnur Merger Agreement [Member] | New Drug Application First Approval [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements   40,000,000    
Legacy Semnur Merger Agreement [Member] | Cumulative Net Sales One Hundred Million Dollars [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements   20,000,000    
Asset acquisition, contingent consideration arrangements, Cumulative net sales threshold   100,000,000    
Legacy Semnur Merger Agreement [Member] | Cumulative Net Sales Five Hundred Million Dollars [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements   50,000,000    
Asset acquisition, contingent consideration arrangements, Cumulative net sales threshold   500,000,000    
Legacy Semnur Merger Agreement [Member] | Cumulative Net Sales Two Hundred And Fifty Million Dollar [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements   20,000,000    
Legacy Semnur Merger Agreement [Member] | Cumulative Net Sales Seven Hundred And Fifty Million Dollars [Member]        
Loss Contingencies [Line Items]        
Asset acquisition contingent consideration arrangements   150,000,000    
Asset acquisition, contingent consideration arrangements, Cumulative net sales threshold   $ 750,000,000    
Shah Assignment Agreement [Member] | Net Sales for Annual Net Sales at the Rate of One Point Five Percentage [Member]        
Loss Contingencies [Line Items]        
Asset acquisition, contingent consideration arrangements, Cumulative net sales threshold     $ 250,000,000  
Percentage of contingent consideration of net sales     1.50%  
Contingent consideration arrangements, cumulative net sales threshold     $ 250,000,000  
Shah Assignment Agreement [Member] | Net Sales for Annual Net Sales at the Rate of Two Point Five Percentage [Member]        
Loss Contingencies [Line Items]        
Percentage of contingent consideration of net sales     2.50%  
Contingent consideration arrangements, cumulative net sales threshold     $ 250,000,000  
Semnur Merger Agreement [Member]        
Loss Contingencies [Line Items]        
Registration payment arrangement, maximum potential consideration       $ 280,000
Registration payment arrangement, event to transfer consideration       (i) a $20.0 million payment upon the achievement of $100.0 million in cumulative net sales of a Semnur product, (ii) a $20.0 million payment upon the achievement of $250.0 million in cumulative net sales of a Semnur product, (iii) a $50.0 million payment upon the achievement of $500.0 million in cumulative net sales of a Semnur product, and (iv) a $150.0 million payment upon the achievement of $750.0 million in cumulative net sales of a Semnur product.