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Marketable Securities (Tables) | 9 Months Ended
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Sep. 30, 2024
Debt Securities, Available-for-Sale [Abstract] |
Cash equivalents and marketable securities classified as available-for-sale | Total cash, cash equivalents and marketable securities are summarized as follows:
|  | As of September 30, 2024 |  |
(In thousands) |  | Fair Value |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |
Cash |  | $ | 101,110 |  |  | $ | 101,110 |  |  | $ | — |  |  | $ | — |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | 6,089 |  |  | 6,089 |  |  | — |  |  | — |  |  |
Corporate bonds, commercial paper and notes |  | 6,781 |  |  | 6,781 |  |  | 1 |  |  | (1) |  |  |
Total cash equivalents |  | 12,870 |  |  | 12,870 |  |  | 1 |  |  | (1) |  |  |
Total cash and cash equivalents |  | 113,980 |  |  | 113,980 |  |  | 1 |  |  | (1) |  |  |
Marketable securities: |  |  |  |  |  |  |  |  |  |
Time deposits |  | 13,090 |  |  | 13,090 |  |  | — |  |  | — |  |  |
U.S. Government bonds and notes |  | 180,035 |  |  | 179,639 |  |  | 428 |  |  | (32) |  |  |
Corporate bonds, commercial paper and notes |  | 125,592 |  |  | 125,315 |  |  | 287 |  |  | (10) |  |  |
Total marketable securities |  | 318,717 |  |  | 318,044 |  |  | 715 |  |  | (42) |  |  |
Total cash, cash equivalents and marketable securities |  | $ | 432,697 |  |  | $ | 432,024 |  |  | $ | 716 |  |  | $ | (43) |  |  |
|  | As of December 31, 2023 |  |
(In thousands) |  | Fair Value |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |
Cash |  | $ | 88,486 |  |  | $ | 88,486 |  |  | $ | — |  |  | $ | — |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | 3,790 |  |  | 3,790 |  |  | — |  |  | — |  |  |
U.S. Government bonds and notes |  | 2,491 |  |  | 2,491 |  |  | — |  |  | — |  |  |
Total cash equivalents |  | 6,281 |  |  | 6,281 |  |  | — |  |  | — |  |  |
Total cash and cash equivalents |  | 94,767 |  |  | 94,767 |  |  | — |  |  | — |  |  |
Marketable securities: |  |  |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | 194,428 |  |  | 194,389 |  |  | 251 |  |  | (212) |  |  |
Corporate bonds, commercial paper and notes |  | 136,649 |  |  | 136,892 |  |  | 162 |  |  | (405) |  |  |
Total marketable securities |  | 331,077 |  |  | 331,281 |  |  | 413 |  |  | (617) |  |  |
Total cash, cash equivalents and marketable securities |  | $ | 425,844 |  |  | $ | 426,048 |  |  | $ | 413 |  |  | $ | (617) |  |  |
Available-for-sale securities reported at fair value | Available-for-sale securities are reported at fair value on the balance sheets and classified along with cash as follows:
|  | As of
(In thousands) |  | September 30, 2024 |  | December 31, 2023
Cash |  | $ | 101,110 |  |  | $ | 88,486 |
Cash equivalents |  | 12,870 |  |  | 6,281 |
Total cash and cash equivalents |  | 113,980 |  |  | 94,767 |
Marketable securities |  | 318,717 |  |  | 331,077 |
Total cash, cash equivalents and marketable securities |  | $ | 432,697 |  |  | $ | 425,844 |
Estimated fair value of cash equivalents and marketable securities classified by the length of time that the securities have been in a continuous unrealized loss position | The estimated fair value and gross unrealized losses of cash equivalents and marketable securities classified by the length of time that the securities have been in a continuous unrealized loss position at September 30, 2024 and December 31, 2023 are as follows:
|  | Fair Value |  | Gross Unrealized Losses
(In thousands) |  | September 30, 2024 |  | December 31, 2023 |  | September 30, 2024 |  | December 31, 2023
Less than 12 months |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | $ | 46,746 |  |  | $ | 32,454 |  |  | $ | (32) |  |  | $ | (53) |
Corporate bonds, commercial paper and notes |  | 21,009 |  |  | 46,407 |  |  | (11) |  |  | (40) |
Total cash equivalents and marketable securities in a continuous unrealized loss position for less than 12 months |  | 67,755 |  |  | 78,861 |  |  | (43) |  |  | (93) |
12 months or greater |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | — |  |  | 6,841 |  |  | — |  |  | (159) |
Corporate bonds, commercial paper and notes |  | — |  |  | 16,619 |  |  | — |  |  | (365) |
Total marketable securities in a continuous unrealized loss position for 12 months or greater |  | — |  |  | 23,460 |  |  | — |  |  | (524) |
Total cash equivalents and marketable securities in a continuous unrealized loss position |  | $ | 67,755 |  |  | $ | 102,321 |  |  | $ | (43) |  |  | $ | (617) |
Contractual maturities of cash equivalents (excluding money market funds which have no maturity) and marketable securities | The contractual maturities of cash equivalents (excluding money market funds which have no maturity) and marketable securities are summarized as follows:
(In thousands) |  | September 30, 2024
Due in less than one year |  | $ | 282,683 |
Due from one year through three years |  | 42,815 |
Total |  | $ | 325,498 |

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