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Fair Value Measurements - Schedule of Instruments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Other Investments: |  |  |
Beginning balance |  |  |
Purchases |  | 674 |
Net unrealized gains | [1] | 13 |
Ending balance |  | 687 |
Investments in Convertible Notes [Member] |  |  |
Other Investments: |  |  |
Beginning balance |  |  | 21,421
Purchases |  |  | 11,228
Settlements |  |  | (28,818)
Conversions | [2] |  | (9,684)
Net realized gains/(losses) | [3] |  | 5,853
Ending balance |  |  |
Deferred Consideration [Member] |  |  |
Other Investments: |  |  |
Beginning balance |  |  | 200,290
Settlements |  |  | (144,406)
Net realized gains/(losses) | [4] |  | 6,069
Net unrealized gains | [5] |  | (61,953)
Ending balance |  |  |
[1] | Recorded in impairments and other gains/(losses), net in the Consolidated Statements of Operations.
[2] | The Fnality convertible notes converted into Series B-1 Preference Shares on October 31, 2023 (Note 7).
[3] | Recorded in impairments and other gains/(losses), net in the Consolidated Statements of Operations.
[4] | Recorded as contractual gold payments expense in the Consolidated Statements of Operations.
[5] | Recorded as gain on revaluation/termination of deferred consideration—gold payments in the Consolidated Statements of Operations.

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