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Licensed rights and other intangible assets (Tables) | 6 Months Ended
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Jun. 30, 2022
Goodwill And Intangible Assets Disclosure [Abstract] |
Summary of Information about License Rights and Other Intangible Assets, Net | The following provides information about our license rights and other intangible assets, net (in thousands):
|  | June 30, 2022 |  |  | December 31, 2021 |
|  | Gross |  |  |  |  |  |  |  |  |  |  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  |  |  |  |  | Carrying |  |  | Accumulated |  |  |  |  |
|  | Amount |  |  | Amortization |  |  | Net |  |  | Amount |  |  | Amortization |  |  | Net |
Licensed rights and intangible assets subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License rights |  | $ | 40,000 |  |  | $ | 8,333 |  |  | $ | 31,667 |  |  | $ | 40,000 |  |  | $ | 6,826 |  |  | $ | 33,174 |
Hormone therapy drug patents |  |  | 6,161 |  |  |  | 1,363 |  |  |  | 4,798 |  |  |  | 5,834 |  |  |  | 1,042 |  |  |  | 4,792 |
Hormone therapy drug patents applied and pending approval |  |  | 1,936 |  |  |  | — |  |  |  | 1,936 |  |  |  | 2,020 |  |  |  | — |  |  |  | 2,020 |
License rights and other intangible assets subject to amortization |  |  | 48,097 |  |  |  | 9,696 |  |  |  | 38,401 |  |  |  | 47,854 |  |  |  | 7,868 |  |  |  | 39,986 |
Intangible assets not subject to amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks/trade name rights |  |  | 320 |  |  |  | — |  |  |  | 320 |  |  |  | 332 |  |  |  | — |  |  |  | 332 |
License rights and other intangible assets, net |  | $ | 48,417 |  |  | $ | 9,696 |  |  | $ | 38,721 |  |  | $ | 48,186 |  |  | $ | 7,868 |  |  | $ | 40,318 |

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