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Investment Securities and Certificates of Deposit (Tables) | 3 Months Ended
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Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | The Company's Investment Securities and Certificates of Deposit as of March 31, 2024 and December 31, 2023 were as follows:
|  |  |  |  |  |  | March 31, 2024 |  |  |  |  |  |  |  | December 31, 2023
Debt Securities |  |  |  |  |  |  | $ | 185,414 |  |  |  |  |  |  |  |  | $ | 744,315 |
Equity Securities |  |  |  |  |  |  | 297 |  |  |  |  |  |  |  |  | 375 |
Debt Securities Carried by EGL |  |  |  |  |  |  | 467,486 |  |  |  |  |  |  |  |  | 476,778 |
Investment Funds |  |  |  |  |  |  | 164,104 |  |  |  |  |  |  |  |  | 160,559 |
Total Investment Securities, at fair value |  |  |  |  |  |  | $ | 817,301 |  |  |  |  |  |  |  |  | $ | 1,382,027 |
Certificates of Deposit, at contract value |  | 48,001 |  |  |  |  |  |  |  |  | 54,856 |
Total Investment Securities and Certificates of Deposit |  | $ | 865,302 |  |  |  |  |  |  |  |  | $ | 1,436,883 |
Investments Classified by Contractual Maturity Date | Scheduled maturities of the Company's available-for-sale debt securities as of March 31, 2024 and December 31, 2023 were as follows:
| March 31, 2024 |  | December 31, 2023
| Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due within one year | $ | 184,436 |  |  | $ | 184,438 |  |  | $ | 743,198 |  |  | $ | 743,338 |
Due after one year through five years | 984 |  |  | 976 |  |  | 980 |  |  | 977 |
Total | $ | 185,420 |  |  | $ | 185,414 |  |  | $ | 744,178 |  |  | $ | 744,315 |

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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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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