Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)

v3.23.3
Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2010
cvr
Sep. 30, 2023
USD ($)
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of CVR Series | cvr 4      
Transferred over Time | Phase 3 clinical trial        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Gross contract asset   $ 10,000 $ 10,000  
Maximum | Transferred over Time | Development, regulatory, & commercial milestones and tiered royalties        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments   375,000 375,000  
Metabasis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Number of CVRs issued per acquiree share | cvr 4      
Number of CVRs issued from each CVR series | cvr 1      
Frequency of cash payments to CVR holders 6 months      
(Decrease) increase of mark-to-market adjustment of CVR liability   (100) 2  
Recurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment in Viking common stock   24,680 24,680 $ 63,122
Derivative Asset   3,281 3,281 0
Total assets   174,508 174,508 166,864
Amounts owed to former licensor   0 0 44
Total liabilities   3,595 3,595 3,557
Recurring | Short-term investments, excluding Viking        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, fair value   146,547 146,547 103,742
Recurring | Contingent liabilities | CyDex        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   164 164 84
Recurring | Contingent liabilities | Metabasis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   3,431 3,431 3,429
Recurring | Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment in Viking common stock   24,680 24,680 63,122
Derivative Asset   0 0 0
Total assets   30,235 30,235 67,114
Amounts owed to former licensor   0 0 44
Total liabilities   0 0 44
Recurring | Level 1 | Short-term investments, excluding Viking        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, fair value   5,555 5,555 3,992
Recurring | Level 1 | Contingent liabilities | CyDex        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   0 0 0
Recurring | Level 1 | Contingent liabilities | Metabasis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   0 0 0
Recurring | Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment in Viking common stock   0 0 0
Derivative Asset   0 0 0
Total assets   140,970 140,970 99,615
Amounts owed to former licensor   0 0 0
Total liabilities   3,431 3,431 3,429
Recurring | Level 2 | Short-term investments, excluding Viking        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, fair value   140,970 140,970 99,615
Recurring | Level 2 | Contingent liabilities | CyDex        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   0 0 0
Recurring | Level 2 | Contingent liabilities | Metabasis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   3,431 3,431 3,429
Recurring | Level 3        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment in Viking common stock   0 0 0
Derivative Asset   3,281 3,281 0
Total assets   3,303 3,303 135
Amounts owed to former licensor   0 0 0
Total liabilities   164 164 84
Recurring | Level 3 | Short-term investments, excluding Viking        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, fair value   22 22 135
Recurring | Level 3 | Contingent liabilities | CyDex        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   164 164 84
Recurring | Level 3 | Contingent liabilities | Metabasis        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent liabilities   $ 0 $ 0 $ 0