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v3.23.1

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Jan. 31, 2010 contingent_value_right | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Number of CVR Series | contingent_value_right | 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 |
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 |
Metabasis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Number of CVRs issued per acquiree share | contingent_value_right | 4 |  |
Number of CVRs issued from each CVR series | contingent_value_right | 1 |  |
Frequency of cash payments to CVR holders | 6 months |  |
Mark-to-market adjustment of CVR liability |  | (700) |
Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Investment in Viking common stock |  | 59,359 | $ 63,122
Total assets |  | 193,937 | 166,864
Amounts owed to former licensor |  | 44 | 44
Total liabilities |  | 2,887 | 3,557
Recurring | Short-term investments, excluding Viking |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Investments, fair value |  | 134,578 | 103,742
Recurring | Contingent liabilities | CyDex |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | 86 | 84
Recurring | Contingent liabilities | Metabasis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | 2,757 | 3,429
Recurring | Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Investment in Viking common stock |  |  | 63,122
Total assets |  | 67,212 | 67,114
Amounts owed to former licensor |  | 44 | 44
Total liabilities |  | 44 | 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 |  | 7,853 | 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
Recurring | Level 1 | Contingent liabilities | Metabasis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | 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
Total assets |  | 126,592 | 99,615
Amounts owed to former licensor |  | 0 | 0
Total liabilities |  | 2,757 | 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 |  | 126,592 | 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
Recurring | Level 2 | Contingent liabilities | Metabasis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | 2,757 | 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
Total assets |  | 133 | 135
Amounts owed to former licensor |  | 0 | 0
Total liabilities |  | 86 | 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 |  | 133 | 135
Recurring | Level 3 | Contingent liabilities | CyDex |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | 86 | 84
Recurring | Level 3 | Contingent liabilities | Metabasis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent liabilities |  | $ 0 | $ 0

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