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Royalty and Commercial Payment Purchase Agreements - Summary of Royalty Receivable Activities (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
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Jul. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Agreements |  |  |
Short-term royalty receivable, Balance at beginning of period |  | $ 0 |
Short-term royalty receivable, Balance at end of period |  | 2,366 | $ 0
Long-term royalty receivable, Balance at beginning of period |  | 69,075 | 34,575
Long-term royalty receivable, Balance at end of period |  | 63,683 | 69,075
Viracta |  |  |
Agreements |  |  |
Acquisition of royalty and commercial payment rights, Long-Term |  |  | 13,500
Kuros |  |  |
Agreements |  |  |
Acquisition of royalty and commercial payment rights, Long-Term |  |  | 7,000
Receipt of royalty and commercial payments, Long-Term |  | (2,500) |
Affitech |  |  |
Agreements |  |  |
Acquisition of royalty and commercial payment rights, Long-Term |  |  | $ 14,000
Receipt of royalty and commercial payments, Long-Term |  | (526) |
Reclassification to short-term royalty and commercial payment receivable |  | 2,366 |
Reclassification to long-term royalty and commercial payment receivable |  | $ (2,366) |
Royalty Purchase Agreement | Kuros |  |  |
Agreements |  |  |
Receipt of royalty and commercial payments, Long-Term | $ (2,500) |  |

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