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Cash and Cash Equivalents, Investments and Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2023
Cash and Cash Equivalents [Abstract] |
Schedule of Cash, Cash Equivalents and Investments | The following tables show our cash and cash equivalents, and investments’ fair value level classification, adjusted cost, unrealized gain, unrealized loss and fair value as of March 31, 2023 and December 31, 2022 (in thousands except for fair value levels):
| March 31, 2023
| Fair Value Level |  | Adjusted Cost |  | Unrealized Gain |  | Unrealized Loss |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |  |  |
Cash |  |  | $ | 31,393 |  |  | $ | — |  |  | $ | — |  |  | $ | 31,393 |
Money market funds | Level 1 |  | 149,731 |  |  | — |  |  | — |  |  | 149,731 |
Commercial paper | Level 2 |  | 100,216 |  |  | — |  |  | (38) |  |  | 100,178 |
Total cash and cash equivalents |  |  | $ | 281,340 |  |  | $ | — |  |  | $ | (38) |  |  | $ | 281,302 |
Short-term investments: |  |  |  |  |  |  |  |  |
Corporate debt securities | Level 2 |  | $ | 214,883 |  |  | $ | — |  |  | $ | (2,435) |  |  | $ | 212,448 |
U.S. treasury securities | Level 1 |  | 30,190 |  |  | — |  |  | (21) |  |  | 30,169 |
Agency bonds | Level 2 |  | 35,253 |  |  | — |  |  | (6) |  |  | 35,247 |
Total short-term investments |  |  | $ | 280,326 |  |  | $ | — |  |  | $ | (2,462) |  |  | $ | 277,864 |
Long-term investments: |  |  |  |  |  |  |  |  |
Corporate debt securities | Level 2 |  | $ | 364,729 |  |  | $ | 1,003 |  |  | $ | (366) |  |  | $ | 365,366 |
U.S. treasury securities | Level 1 |  | 99,424 |  |  | 470 |  |  | (54) |  |  | 99,840 |
Agency bonds | Level 2 |  | 148,669 |  |  | 74 |  |  | (86) |  |  | 148,657 |
Total long-term investments |  |  | $ | 612,822 |  |  | $ | 1,547 |  |  | $ | (506) |  |  | $ | 613,863 |
| December 31, 2022
| Fair Value Level |  | Adjusted Cost |  | Unrealized Gain |  | Unrealized Loss |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |  |  |
Cash |  |  | $ | 33,532 |  |  | $ | — |  |  | $ | — |  |  | $ | 33,532 |
Money market funds | Level 1 |  | 440,145 |  |  | — |  |  | — |  |  | 440,145 |
Total cash and cash equivalents |  |  | $ | 473,677 |  |  | $ | — |  |  | $ | — |  |  | $ | 473,677 |
Short-term investments: |  |  |  |  |  |  |  |  |
Commercial paper | Level 2 |  | $ | 11,744 |  |  | $ | — |  |  | $ | (29) |  |  | $ | 11,715 |
Corporate debt securities | Level 2 |  | 491,459 |  |  | — |  |  | (4,130) |  |  | 487,329 |
U.S. treasury securities | Level 1 |  | 85,271 |  |  | — |  |  | (342) |  |  | 84,929 |
Total short-term investments |  |  | $ | 588,474 |  |  | $ | — |  |  | $ | (4,501) |  |  | $ | 583,973 |
Long-term investments: |  |  |  |  |  |  |  |  |
Corporate debt securities | Level 2 |  | $ | 125,735 |  |  | $ | 158 |  |  | $ | (909) |  |  | $ | 124,984 |
U.S. treasury securities | Level 1 |  | 30,633 |  |  | 122 |  |  | — |  |  | 30,755 |
Agency bonds | Level 2 |  | 60,635 |  |  | — |  |  | (141) |  |  | 60,494 |
Total long-term investments |  |  | $ | 217,003 |  |  | $ | 280 |  |  | $ | (1,050) |  |  | $ | 216,233 |
Schedule of Available-for-sale Securities Reconciliation | The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of March 31, 2023 (in thousands):
| Adjusted Cost |  | Fair Value
Due within one year | $ | 380,542 |  |  | $ | 378,042 |
Due after one year through three years | 612,822 |  |  | 613,863 |
Investments not due at a single maturity date | 149,731 |  |  | 149,731 |
Total | $ | 1,143,095 |  |  | $ | 1,141,636 |

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