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Investments (Tables) | 12 Months Ended
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Dec. 31, 2024
Investments [Abstract] |
Summary of investments | The following tables summarize our investments as of December 31, 2024 and 2023 (in thousands):
| December 31, 2024
| Cost |  | Unrealized Gains |  | Unrealized Losses |  | Carrying Amount
Publicly traded companies | $188,653 |  | $24,262 |  | $(107,248) |  | $105,667
Entities that report NAV | 518,074 |  | 126,077 |  | (34,285) |  | 609,866
Entities that do not report NAV: |  |  |  |  |  |  |
Entities with observable price changes | 99,932 |  | 77,761 |  | (2,956) |  | 174,737
Entities without observable price changes | 400,487 |  | — |  | — |  | 400,487
Investments accounted for under the equity method | N/A |  | N/A |  | N/A |  | 186,228
Total investments | $1,207,146 |  | $228,100 |  | $(144,489) |  | $1,476,985
| December 31, 2023
| Cost |  | Unrealized Gains |  | Unrealized Losses |  | Carrying Amount
Publicly traded companies | $203,467 |  | $50,377 |  | $(94,278) |  | $159,566
Entities that report NAV | 507,059 |  | 192,468 |  | (27,995) |  | 671,532
Entities that do not report NAV: |  |  |  |  |  |  |
Entities with observable price changes | 97,892 |  | 77,600 |  | (1,224) |  | 174,268
Entities without observable price changes | 368,654 |  | — |  | — |  | 368,654
Investments accounted for under the equity method | N/A |  | N/A |  | N/A |  | 75,498
Total investments | $1,177,072 |  | $320,445 |  | $(123,497) |  | $1,449,518
Schedule of net investment income | Our investment income (loss) for the years ended December 31, 2024, 2023, and 2022 consisted of the following (in thousands):
|  | Year Ended December 31,
|  | 2024 |  | 2023 |  | 2022
Realized gains |  | $59,124 | (1) | $6,078 |  | $80,435
Unrealized losses |  | (112,246) |  | (201,475) |  | (412,193)
Investment loss |  | $(53,122) |  | $(195,397) |  | $(331,758)
(1)Consists of realized gains of $117.2 million, partially offset by impairment charges of $58.1 million during the year ended December 31, 2024.

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