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Description of Operations and Summary of Significant Accounting Policies (Details) $ in Billions | 3 Months Ended | 9 Months Ended |
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Sep. 30, 2023 | Sep. 30, 2023 USD ($) Customer | Jul. 20, 2022
Description of Operations and Summary of Significant Accounting Policies |  |  |
Number of customers | Customer |  | 3 |
Theravance Respiratory Company, LLC |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Equity method investment ownership percentage |  |  | 15.00%
Customer Concentration Risk | Net Product Sales | La Jolla | Customer One |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage | 27.00% | 32.00% |
Customer Concentration Risk | Net Product Sales | La Jolla | Customer Two |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage | 28.00% | 28.00% |
Customer Concentration Risk | Net Product Sales | La Jolla | Customer Three |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage | 26.00% | 27.00% |
Customer Concentration Risk | Receivables from Net Product Sales | La Jolla | Customer One |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage |  | 29.00% |
Customer Concentration Risk | Receivables from Net Product Sales | La Jolla | Customer Two |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage |  | 28.00% |
Customer Concentration Risk | Receivables from Net Product Sales | La Jolla | Customer Three |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Concentration Risk, Percentage |  | 14.00% |
Long-Acting Beta2 Agonist (LABA) Collaboration | GSK | RELVAR/BREO |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Royalty rate for first level of annual global net sales (as a percent) |  | 15.00% |
Annual global sales level used to determine royalty rate | $ |  | $ 3.0 |
Royalty rate for sales above first level of annual global net sales (as a percent) |  | 5.00% |
Long-Acting Beta2 Agonist (LABA) Collaboration | GSK | ANORO | Minimum |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Royalty rate for combination products (as a percent) |  | 6.50% |
Long-Acting Beta2 Agonist (LABA) Collaboration | GSK | ANORO | Maximum |  |  |
Description of Operations and Summary of Significant Accounting Policies |  |  |
Royalty rate for combination products (as a percent) |  | 10.00% |

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