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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2023
Cash, Cash Equivalents And Marketable Securities [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:
| As of December 31,
| 2023 |  | 2022
| (In millions)
Cash | $ | 25.6 |  |  | $ | 27.0 |
Time deposits | 1.0 |  |  | 4.1 |
Money market funds (Level 1) | 160.3 |  |  | 178.6 |
Debt securities issued by the U.S. Treasury (Level 1) | 744.9 |  |  | 776.1 |
Total | $ | 931.8 |  |  | $ | 985.8 |
Cash and cash equivalents | $ | 240.1 |  |  | $ | 373.6 |
Restricted cash (included in Other long-term assets) | 5.4 |  |  | 5.4 |
Total Cash, cash equivalents, and restricted cash | 245.5 |  |  | 379.0 |
Marketable securities | 686.3 |  |  | 606.8 |
Total | $ | 931.8 |  |  | $ | 985.8 |

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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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- Definition Cash, Cash Equivalents, And Marketable Securities [Abstract] + References No definition available. + Details
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