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v3.19.3.a.u2

Concentrations of Credit Risk (Details) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Milestone Revenues | Customer Concentration Risk | Collaboration Partner A |  |  |
Concentration of risk |  |  |
Percentage of concentration risk |  | 33.00% | 37.00%
Milestone Revenues | Customer Concentration Risk | Collaboration Partner B |  |  |
Concentration of risk |  |  |
Percentage of concentration risk |  | 67.00% | 63.00%
Milestone Revenues | Customer Concentration Risk | Collaboration Partner C |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 77.00% |  |
Milestone Revenues | Customer Concentration Risk | Collaboration Partner D |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 23.00% |  |
Net Product Revenues | Customer Concentration Risk | Customer A |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 20.00% | 20.00% | 24.00%
Net Product Revenues | Customer Concentration Risk | Customer B |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 13.00% | 14.00% | 15.00%
Net Product Revenues | Customer Concentration Risk | Customer C |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 16.00% | 15.00% | 13.00%
Net Product Revenues | Customer Concentration Risk | Customer D |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 11.00% | 11.00% | 8.00%
Accounts Receivable | Credit Concentration Risk | Collaboration Partner A, B, C and D |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 30.00% | 42.00% |
Accounts Receivable | Credit Concentration Risk | Customer A, B, C and D |  |  |
Concentration of risk |  |  |
Percentage of concentration risk | 39.00% | 30.00% |

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