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CASH EQUIVALENTS AND MARKETABLE SECURITIES - (Tables) | 9 Months Ended
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Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | The table below summarizes the Company’s cash equivalents and marketable securities (in thousands):
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
September 30, 2022 |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 44,911 |  |  | $ | — |  |  | $ | — |  |  | $ | 44,911 |
Total | 44,911 |  |  | — |  |  | — |  |  | 44,911 |
Marketable securities: |  |  |  |  |  |  |
U.S. government-sponsored entity debt securities | 23,832 |  |  | — |  |  | (440) |  |  | 23,392 |
Commercial paper securities | 120,750 |  |  | 11 |  |  | (375) |  |  | 120,386 |
Corporate debt securities | 15,050 |  |  | — |  |  | (162) |  |  | 14,888 |
Asset-backed securities | 38,039 |  |  | 2 |  |  | (268) |  |  | 37,773 |
U.S. treasury bills | 16,943 |  |  | — |  |  | (21) |  |  | 16,922 |
Certificate of deposits | 42,478 |  |  | 5 |  |  | (146) |  |  | 42,337 |
Total | 257,092 |  |  | 18 |  |  | (1,412) |  |  | 255,698 |
Total cash equivalents and marketable securities | $ | 302,003 |  |  | $ | 18 |  |  | $ | (1,412) |  |  | $ | 300,609 |
December 31, 2021 |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 119,919 |  |  | $ | — |  |  | $ | — |  |  | $ | 119,919 |
Total | 119,919 |  |  | — |  |  | — |  |  | 119,919 |
Marketable securities: |  |  |  |  |  |  |
U.S. government-sponsored entity debt securities | 30,700 |  |  | 1 |  |  | (87) |  |  | 30,614 |
Commercial paper securities | 105,792 |  |  | 7 |  |  | (42) |  |  | 105,757 |
Corporate debt securities | 33,723 |  |  | 1 |  |  | (42) |  |  | 33,682 |
Asset-backed securities | 70,807 |  |  | 1 |  |  | (107) |  |  | 70,701 |
Certificate of deposits | 45,116 |  |  | 1 |  |  | (26) |  |  | 45,091 |
Total | 286,138 |  |  | 11 |  |  | (304) |  |  | 285,845 |
Total cash equivalents and marketable securities | $ | 406,057 |  |  | $ | 11 |  |  | $ | (304) |  |  | $ | 405,764 |
Fair value of investments available-for-sale | The fair value of marketable securities by contractual maturity were as follows (in thousands):
| September 30, 2022 |  | December 31, 2021
Maturing in one year or less | $ | 218,998 |  |  | $ | 197,676 |
Maturing after one year through five years | 36,700 |  |  | 88,169 |
Total | $ | 255,698 |  |  | $ | 285,845 |

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