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STOCK-BASED COMPENSATION | 9 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
STOCK-BASED COMPENSATION | STOCK-BASED COMPENSATIONThe following table shows total stock-based compensation expense included in the Condensed Consolidated Statements of Operations (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Research and development | $ | 4,935 |  |  | $ | 3,573 |  |  | $ | 14,645 |  |  | $ | 9,990 |
General and administrative | 2,938 |  |  | 3,109 |  |  | 10,235 |  |  | 9,076 |
Total stock-based compensation expense | $ | 7,873 |  |  | $ | 6,682 |  |  | $ | 24,880 |  |  | $ | 19,066 |

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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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