v3.24.1.u1
Equity Investments - Additional Information (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 07, 2023
$ / shares
shares
Apr. 30, 2022
USD ($)
shares
Jul. 31, 2021
USD ($)
shares
May 31, 2021
USD ($)
shares
Mar. 31, 2024
USD ($)
shares
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Debt and Equity Securities, FV-NI [Line Items]              
Unrealized gain             $ 1,928,000
Realized gain         $ 8,137,000 $ 35,737,000 147,213,000
Nimbus Therapeutics, LLC              
Debt and Equity Securities, FV-NI [Line Items]              
Non-marketable equity security         1,928,000   1,928,000
Unrealized gain         0    
Realized gain           147,322,000  
Morphic Holding, Inc.              
Debt and Equity Securities, FV-NI [Line Items]              
Gain (loss)         5,277,000 9,093,000  
Marketable securities         29,391,000   24,114,000
Ajax Therapeutics, Inc              
Debt and Equity Securities, FV-NI [Line Items]              
Non-marketable equity security         1,700,000   1,700,000
Structure Therapeutics              
Debt and Equity Securities, FV-NI [Line Items]              
Gain (loss)         2,859,000 $ 26,644,000  
Marketable securities         $ 58,368,000   $ 55,509,000
Series B Preferred Stock | Structure Therapeutics              
Debt and Equity Securities, FV-NI [Line Items]              
Conversion ratio 1            
Series B Preferred Stock | Ajax Therapeutics, Inc              
Debt and Equity Securities, FV-NI [Line Items]              
Number of preferred shares purchased (in shares) | shares       631,377      
Cash payments to purchase of shares       $ 1,700,000      
Series B Preferred Stock | Structure Therapeutics              
Debt and Equity Securities, FV-NI [Line Items]              
Number of preferred shares purchased (in shares) | shares   148,210 494,035        
Cash payments to purchase of shares   $ 600,000 $ 2,000,000        
Common stock | Structure Therapeutics              
Debt and Equity Securities, FV-NI [Line Items]              
Shares owned (in shares) | shares         3,260,495    
ADR | Structure Therapeutics              
Debt and Equity Securities, FV-NI [Line Items]              
Number of shares purchased | shares 275,000            
Purchase price (in USD per share) | $ / shares $ 15.00            
Stock split, conversion ratio 3