Royalty and Commercial Payment Purchase Agreements - Under Cost Recovery Method (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Royalty and Commercial Payment Purchase Agreements | ||
| Short-term royalty and commercial payment receivables under the cost recovery method | $ 0 | $ 0 |
| Long-term royalty and commercial payment receivables under the cost recovery method | $ 55,886 | $ 55,888 |