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Investments in debt and equity securities (Tables) | 9 Months Ended
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Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investments | The Company’s short-term and long-term debt and equity investments, consisting of debt instruments classified as held-to-maturity and equity investments with readily determinable fair values or redemption values, were as follows:
| September 30, 2023 |  | December 31, 2022
| Debt securities |  | Equity securities |  | Total |  | Debt securities |  | Equity securities |  | Total
Certificates of deposit and other time deposits | $ | 20,430 |  |  | $ | — |  |  | $ | 20,430 |  |  | $ | 82,879 |  |  | $ | — |  |  | $ | 82,879 |
Investments in mutual funds and common stocks | — |  |  | 36,603 |  |  | 36,603 |  |  | — |  |  | 39,143 |  |  | 39,143 |
| $ | 20,430 |  |  | $ | 36,603 |  |  | $ | 57,033 |  |  | $ | 82,879 |  |  | $ | 39,143 |  |  | $ | 122,022 |
Short-term investments | $ | 5,419 |  |  | $ | 6,294 |  |  | $ | 11,713 |  |  | $ | 67,872 |  |  | $ | 9,821 |  |  | $ | 77,693 |
Long-term investments | 15,011 |  |  | 30,309 |  |  | 45,320 |  |  | 15,007 |  |  | 29,322 |  |  | 44,329 |
| $ | 20,430 |  |  | $ | 36,603 |  |  | $ | 57,033 |  |  | $ | 82,879 |  |  | $ | 39,143 |  |  | $ | 122,022 |

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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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