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Marketable Securities (Tables) | 9 Months Ended
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Sep. 30, 2023
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, 2023 |  |
(In thousands) |  | Fair Value |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |
Cash |  | $ | 87,745 |  |  | $ | 87,745 |  |  | $ | — |  |  | $ | — |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | 14,129 |  |  | 14,129 |  |  | — |  |  | — |  |  |
U.S. Government bonds and notes |  | 11,885 |  |  | 11,886 |  |  | 1 |  |  | (2) |  |  |
Corporate notes, bonds and commercial paper |  | 18,198 |  |  | 18,198 |  |  | 1 |  |  | (1) |  |  |
Total cash equivalents |  | 44,212 |  |  | 44,213 |  |  | 2 |  |  | (3) |  |  |
Total cash and cash equivalents |  | 131,957 |  |  | 131,958 |  |  | 2 |  |  | (3) |  |  |
Marketable securities: |  |  |  |  |  |  |  |  |  |
Time deposits |  | 9,746 |  |  | 9,746 |  |  | — |  |  | — |  |  |
U.S. Government bonds and notes |  | 131,142 |  |  | 131,562 |  |  | 6 |  |  | (426) |  |  |
Corporate notes, bonds and commercial paper |  | 102,700 |  |  | 103,464 |  |  | 2 |  |  | (766) |  |  |
Total marketable securities |  | 243,588 |  |  | 244,772 |  |  | 8 |  |  | (1,192) |  |  |
Total cash, cash equivalents and marketable securities |  | $ | 375,545 |  |  | $ | 376,730 |  |  | $ | 10 |  |  | $ | (1,195) |  |  |
|  | As of December 31, 2022 |  |
(In thousands) |  | Fair Value |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |
Cash |  | $ | 94,737 |  |  | $ | 94,737 |  |  | $ | — |  |  | $ | — |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | 15,763 |  |  | 15,763 |  |  | — |  |  | — |  |  |
Corporate notes, bonds and commercial paper |  | 14,834 |  |  | 14,838 |  |  | — |  |  | (4) |  |  |
Total cash equivalents |  | 30,597 |  |  | 30,601 |  |  | — |  |  | (4) |  |  |
Total cash and cash equivalents |  | 125,334 |  |  | 125,338 |  |  | — |  |  | (4) |  |  |
Marketable securities: |  |  |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | 96,371 |  |  | 98,250 |  |  | 1 |  |  | (1,880) |  |  |
Corporate notes, bonds and commercial paper |  | 91,521 |  |  | 93,254 |  |  | 7 |  |  | (1,740) |  |  |
Total marketable securities |  | 187,892 |  |  | 191,504 |  |  | 8 |  |  | (3,620) |  |  |
Total cash, cash equivalents and marketable securities |  | $ | 313,226 |  |  | $ | 316,842 |  |  | $ | 8 |  |  | $ | (3,624) |  |  |
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, 2023 |  | December 31, 2022
Cash |  | $ | 87,745 |  |  | $ | 94,737 |
Cash equivalents |  | 44,212 |  |  | 30,597 |
Total cash and cash equivalents |  | 131,957 |  |  | 125,334 |
Marketable securities |  | 243,588 |  |  | 187,892 |
Total cash, cash equivalents and marketable securities |  | $ | 375,545 |  |  | $ | 313,226 |
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, 2023 and December 31, 2022 are as follows:
|  | Fair Value |  | Gross Unrealized Losses
(In thousands) |  | September 30, 2023 |  | December 31, 2022 |  | September 30, 2023 |  | December 31, 2022
Less than 12 months |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | $ | 58,506 |  |  | $ | 28,893 |  |  | $ | (116) |  |  | $ | (23) |
Corporate notes, bonds and commercial paper |  | 84,655 |  |  | 45,538 |  |  | (147) |  |  | (35) |
Total cash equivalents and marketable securities in a continuous unrealized loss position for less than 12 months |  | 143,161 |  |  | 74,431 |  |  | (263) |  |  | (58) |
12 months or greater |  |  |  |  |  |  |  |
U.S. Government bonds and notes |  | 19,595 |  |  | 62,588 |  |  | (312) |  |  | (1,857) |
Corporate notes, bonds and commercial paper |  | 17,168 |  |  | 49,559 |  |  | (620) |  |  | (1,709) |
Total cash equivalents and marketable securities in a continuous unrealized loss position for 12 months or greater |  | 36,763 |  |  | 112,147 |  |  | (932) |  |  | (3,566) |
Total cash equivalents and marketable securities in a continuous unrealized loss position |  | $ | 179,924 |  |  | $ | 186,578 |  |  | $ | (1,195) |  |  | $ | (3,624) |
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, 2023
Due less than one year |  | $ | 266,769 |
Due from one year through three years |  | 6,902 |
Total |  | $ | 273,671 |

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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-6 + Details
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