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Investments (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Summary of Investments | The following is a summary of our investments at December 31, 2023:
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  | (In thousands)
Equity securities |  |  |  |  |  |  |  |
Mutual funds |  | $ | 7,002 |  |  | $ | 711 |  |  | $ | — |  |  | $ | 7,713 |
Available-for-sale securities |  |  |  |  |  |  |  |
Corporate bonds |  | 1,479 |  |  | 304 |  |  | — |  |  | 1,783 |
Total |  | $ | 8,481 |  |  | $ | 1,015 |  |  | $ | — |  |  | $ | 9,496 |
The following is a summary of our investments at December 31, 2022:
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  | (In thousands)
Equity securities |  |  |  |  |  |  |  |
Mutual funds |  | $ | 6,352 |  |  | $ | — |  |  | $ | (11) |  |  | $ | 6,341 |
Available-for-sale securities |  |  |  |  |  |  |  |
U.S. Government and agency securities |  | 3,247 |  |  | 10 |  |  | (4) |  |  | 3,253 |
Corporate bonds |  | 2,033 |  |  | 236 |  |  | (4) |  |  | 2,265 |
Asset-backed securities and collateralized mortgage obligations |  | 103 |  |  | — |  |  | (61) |  |  | 42 |
Total |  | $ | 11,735 |  |  | $ | 246 |  |  | $ | (80) |  |  | $ | 11,901 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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