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Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2024
Fair Value Disclosures [Abstract] |
Estimated Fair Values of Financial Instruments | The following table presents the fair values of financial instruments:
| March 31, 2024 |  | December 31, 2023
| (Amounts in thousands)
Assets |  |  |
Investments | $ | 5,453,126 |  |  | $ | 5,228,520 |
Note receivable | 9,818 |  |  | 9,974 |
Liabilities |  |  |
Options sold | 1,928 |  |  | 1,955 |
Notes payable | 560,618 |  |  | 557,710 |

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