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Cash and Cash Equivalents, Restricted Cash and Marketable Securities (Tables) | 9 Months Ended
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Sep. 30, 2024
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] |
Reconciliation of Cash, Cash Equivalents and Restricted Cash | The following table provides a reconciliation of cash and cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same amounts shown in the condensed consolidated statements of cash flows (in thousands):
| September 30, 2024 |  | December 31, 2023 |  | September 30, 2023 |  | December 31, 2022
Cash and cash equivalents | $ | 119,332 |  |  | $ | 150,279 |  |  | $ | 154,511 |  |  | $ | 202,004 |
Restricted cash (1) | 280 |  |  | 277 |  |  | 266 |  |  | 207 |
Total cash and cash equivalents, and restricted cash shown in the condensed consolidated statements of cash flows | $ | 119,612 |  |  | $ | 150,556 |  |  | $ | 154,777 |  |  | $ | 202,211 |
(1)Restricted cash is included in "Other assets" in the Condensed Consolidated Balance Sheets.
Summary of Cash, Cash Equivalents and Marketable Securities | Cash and cash equivalents, and marketable securities consist of the following (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Estimated Fair Value
September 30, 2024 |  |  |  |  |  |  |
Cash and cash equivalents: |  |  |  |  |  |  |
Cash | $ | 19,172 |  |  | $ | - |  |  | $ | - |  |  | $ | 19,172 |
Money market funds | 100,160 |  |  | - |  |  | - |  |  | 100,160 |
Corporate debt securities | - |  |  | - |  |  | - |  |  | - |
Total cash and cash equivalents | 119,332 |  |  | - |  |  | - |  |  | 119,332 |
Marketable securities available-for-sale: |  |  |  |  |  |  |
U.S. treasuries | 169,214 |  |  | 1,118 |  |  | (7) |  |  | 170,325 |
U.S. government agency securities | 166,881 |  |  | 1,018 |  |  | (40) |  |  | 167,859 |
Corporate debt securities | 305,446 |  |  | 1,065 |  |  | (35) |  |  | 306,476 |
Total marketable securities available-for-sale | 641,541 |  |  | 3,201 |  |  | (82) |  |  | 644,660 |
Total cash and cash equivalents, and marketable securities | $ | 760,873 |  |  | $ | 3,201 |  |  | $ | (82) |  |  | $ | 763,992 |
December 31, 2023 |  |  |  |  |  |  |
Cash and cash equivalents: |  |  |  |  |  |  |
Cash | $ | 11,190 |  |  | $ | - |  |  | $ | - |  |  | $ | 11,190 |
Money market funds | 131,635 |  |  | - |  |  | - |  |  | 131,635 |
Corporate debt securities | 7,453 |  |  | 1 |  |  | - |  |  | 7,454 |
Total cash and cash equivalents | 150,278 |  |  | 1 |  |  | - |  |  | 150,279 |
Marketable securities available-for-sale: |  |  |  |  |  |  |
U.S. treasuries | 74,109 |  |  | 172 |  |  | (44) |  |  | 74,237 |
U.S. government agency securities | 216,265 |  |  | 692 |  |  | (269) |  |  | 216,688 |
Corporate debt securities | 300,803 |  |  | 315 |  |  | (20) |  |  | 301,098 |
Total marketable securities available-for-sale | 591,177 |  |  | 1,179 |  |  | (333) |  |  | 592,023 |
Total cash and cash equivalents, and marketable securities | $ | 741,455 |  |  | $ | 1,180 |  |  | $ | (333) |  |  | $ | 742,302 |
Investments Classified by Contractual Maturity Date | The maturities of our marketable securities available-for-sale are as follows (in thousands):
| September 30, 2024
| Amortized Cost |  | Estimated Fair Value
Mature in one year or less | $ | 377,534 |  |  | $ | 378,836 |
Mature after one year through two years | 264,007 |  |  | 265,824 |
| $ | 641,541 |  |  | $ | 644,660 |

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