Quarterly report pursuant to Section 13 or 15(d)

Acquisitions, Licensing and Other Arrangements - Novartis - VPM087 (Details)

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Acquisitions, Licensing and Other Arrangements - Novartis - VPM087 (Details)
$ / shares in Units, $ in Thousands, € in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 24, 2017
USD ($)
item
agreement
$ / shares
shares
Aug. 24, 2017
EUR (€)
item
agreement
shares
Jun. 30, 2024
USD ($)
$ / shares
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
Jun. 30, 2023
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2023
USD ($)
Licensing and other arrangements                
Revenue from contracts with customers     $ 5,025 $ 1,125 $ 6,025 $ 1,125    
Common Stock                
Licensing and other arrangements                
Stock price (in dollars per share) | $ / shares     $ 23.69   $ 23.69      
Novartis Pharma AG | Gevokizumab License Agreement and IL-1 Target License Agreement                
Licensing and other arrangements                
Transaction price $ 40,200              
Cash payment received 25,700              
License agreement consideration received, repayment of debt 14,300              
Common stock premium $ 200              
Number of agreements | agreement 2 2            
Number of arrangements | item 1 1            
Number of performance obligations | item 2 2            
Revenue from contracts with customers     $ 0 $ 0 $ 0 $ 0 $ 40,200  
Contract assets     0   0     $ 0
Contract liabilities     0   0     0
Capitalized contract costs     $ 0   $ 0     $ 0
Novartis Pharma AG | Gevokizumab License Agreement                
Licensing and other arrangements                
License agreement consideration received $ 30,000              
Cash payment received 15,700              
License agreement consideration received, repayment of debt 14,300 € 12.0            
Proceeds from issuance of common stock 5,000              
Common stock premium 200              
Maximum milestone payments entitled to receive $ 438,000              
Agreement termination prior written notice period 6 months 6 months            
Novartis Pharma AG | Gevokizumab License Agreement | Common Stock                
Licensing and other arrangements                
Shares issued (in shares) | shares 539,131 539,131            
Purchase price (in dollars per share) | $ / shares $ 9.2742              
Issuance of common stock, fair value $ 4,800              
Stock price (in dollars per share) | $ / shares $ 8.93              
Novartis Pharma AG | IL-1 Target License Agreement                
Licensing and other arrangements                
Cash payment received $ 10,000