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Cash Equivalents and Marketable Securities (Tables) | 6 Months Ended
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Jun. 30, 2022
Cash Equivalents And Marketable Securities [Abstract] |
Schedule of Cash Equivalent and Marketable Securities Classified as Available-for-Sale | Cash equivalents and marketable securities classified as available-for-sale consisted of the following:
|  | June 30, 2022 |
|  | Amortized Cost Basis |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Estimated Fair Value |
|  | (in thousands) |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 99,569 |  |  | $ | — |  |  | $ | — |  |  | $ | 99,569 |
Commercial paper |  |  | 122,812 |  |  |  | — |  |  |  | (21 | ) |  |  | 122,791 |
Agency discount notes |  |  | 34,937 |  |  |  | — |  |  |  | (4 | ) |  |  | 34,933 |
Total cash equivalents |  |  | 257,318 |  |  |  | — |  |  |  | (25 | ) |  |  | 257,293 |
Marketable securities: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury notes |  |  | 76,127 |  |  |  | — |  |  |  | (151 | ) |  |  | 75,976 |
Commercial paper |  |  | 126,709 |  |  |  | 1 |  |  |  | (207 | ) |  |  | 126,503 |
Corporate debt securities |  |  | 16,032 |  |  |  | — |  |  |  | (45 | ) |  |  | 15,987 |
Total marketable securities |  |  | 218,868 |  |  |  | 1 |  |  |  | (403 | ) |  |  | 218,466 |
Total cash equivalents and marketable securities |  | $ | 476,186 |  |  | $ | 1 |  |  | $ | (428 | ) |  | $ | 475,759 |
|  | December 31, 2021 |
|  | Amortized Cost Basis |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Estimated Fair Value |
|  | (in thousands) |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 176,115 |  |  | $ | — |  |  | $ | — |  |  | $ | 176,115 |
Commercial paper |  |  | 56,988 |  |  |  | — |  |  |  | (2 | ) |  |  | 56,986 |
Total cash equivalents |  |  | 233,103 |  |  |  | — |  |  |  | (2 | ) |  |  | 233,101 |
Marketable securities: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury notes |  |  | 76,518 |  |  |  | — |  |  |  | (46 | ) |  |  | 76,472 |
Commercial paper |  |  | 167,761 |  |  |  | 2 |  |  |  | (26 | ) |  |  | 167,737 |
Corporate debt securities |  |  | 122,548 |  |  |  | — |  |  |  | (58 | ) |  |  | 122,490 |
Supranational debt securities |  |  | 27,046 |  |  |  | — |  |  |  | (2 | ) |  |  | 27,044 |
Total marketable securities |  |  | 393,873 |  |  |  | 2 |  |  |  | (132 | ) |  |  | 393,743 |
Total cash equivalents and marketable securities |  | $ | 626,976 |  |  | $ | 2 |  |  | $ | (134 | ) |  | $ | 626,844 |

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- Definition Cash equivalents and marketable securities. + References No definition available. + Details
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- Definition Schedule of cash equivalents and marketable securities. + References No definition available. + Details
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