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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Stock-based Compensation Expense Included in Statements of Operations | The following table summarizes the total stock-based compensation expense included in the Company’s statements of operations for the periods presented (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Cost of product sales |  | $ | 372 |  |  | $ | 838 |  |  | $ | 2,344 |  |  | $ | 3,025 |
Research and development |  |  | 8,680 |  |  |  | 8,066 |  |  |  | 24,461 |  |  |  | 23,617 |
Selling, general and administrative |  |  | 12,971 |  |  |  | 11,265 |  |  |  | 35,697 |  |  |  | 34,521 |
|  | $ | 22,023 |  |  | $ | 20,169 |  |  | $ | 62,502 |  |  | $ | 61,163 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 + Details
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