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Stock-Based Compensation | 6 Months Ended
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Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock-Based Compensation | 4. Stock-Based Compensation The following table summarizes the total stock-based compensation expense included in the Company’s condensed consolidated statements of operations for the periods presented (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Cost of product sales |  | $ | 743 |  |  | $ | 803 |  |  | $ | 1,592 |  |  | $ | 1,798 |
Research and development |  |  | 7,235 |  |  |  | 7,901 |  |  |  | 15,692 |  |  |  | 15,781 |
Selling, general and administrative |  |  | 11,529 |  |  |  | 11,718 |  |  |  | 24,571 |  |  |  | 22,726 |
|  | $ | 19,507 |  |  | $ | 20,422 |  |  | $ | 41,855 |  |  | $ | 40,305 |

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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