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Royalty and Commercial Payment Purchase Agreements (Tables) | 3 Months Ended
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Mar. 31, 2023
Royalty and Commercial Payment Purchase Agreements |
Summary of royalty receivable activities | The following table summarizes the royalty receivable activities during the three months ended March 31, 2023 (in thousands):
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Short-Term | Long-Term
Balance at January 1, 2023 |  | $ | 2,366 | $ | 63,683
Acquisition of royalty and commercial payment rights: | ​ | ​ | ​ | ​ | ​
Aptevo | ​ |  | ​ |  | 9,650
Receipt of royalty and commercial payments | ​ | ​ | ​ | ​ | ​
Affitech | ​ | ​ | (2,366) | ​ | —
Balance at March 31, 2023 | ​ | $ | — | $ | 73,333

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- Definition Tabular disclosure of the changes in royalty and commercial payment receivables. + References No definition available. + Details
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