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Financial Instruments (Tables) | 9 Months Ended
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Sep. 30, 2020
Financial Instruments, Owned, at Fair Value [Abstract] |
Cash, Cash Equivalents, And Marketable Securities | The following table summarizes the Company’s cash, cash equivalents, and marketable securities and the fair value categorization of the financial instruments measured at fair value on a recurring basis:
| September 30, |  | December 31,
| 2020 |  | 2019
| (In thousands) |  |
Cash | $ | 27,162 |  |  | $ | 33,238 |
Time deposits | 4,078 |  |  | 3,924 |
Money market funds (Level 1) | 123,869 |  |  | 149,624 |
Debt securities issued by the U.S. Treasury (Level 1) | 1,004,658 |  |  | 1,040,678 |
Total | $ | 1,159,767 |  |  | $ | 1,227,464 |
Cash and cash equivalents | $ | 145,701 |  |  | $ | 508,196 |
Restricted cash (included in Other long-term assets) | 9,408 |  |  | 9,405 |
Total Cash, cash equivalents, and restricted cash | 155,109 |  |  | 517,601 |
Marketable securities | 1,004,658 |  |  | 709,863 |
Total | $ | 1,159,767 |  |  | $ | 1,227,464 |

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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