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Investments (Tables) | 6 Months Ended
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Jun. 30, 2023
Investment [Line Items] |
Investments | The following table sets forth the Company’s investments:
|  | June 30, 2023 |  |  | December 31, 2022 |
|  | Carrying Value |  |  | Cost |  |  | Carrying Value |  |  | Cost |
Securrency, Inc.—Series A convertible preferred stock |  | $ | 3,588 |  |  | $ | 8,112 |  |  | $ | 8,488 |  |  | $ | 8,112 |
Securrency, Inc.—Series B convertible preferred stock |  |  | 5,500 |  |  |  | 5,500 |  |  |  | 5,500 |  |  |  | 5,500 |
Securrency, Inc.—secured convertible note |  |  | 8,887 |  |  |  | 10,000 |  |  |  | — |  |  |  | — |
Securrency, Inc.—convertible note |  |  | 13,836 |  |  |  | 15,000 |  |  |  | 14,500 |  |  |  | 15,000 |
Subtotal—Securrency, Inc. |  | $ | 31,811 |  |  | $ | 38,612 |  |  | $ | 28,488 |  |  | $ | 28,612 |
Fnality International Limited—convertible note |  |  | 7,879 |  |  |  | 6,863 |  |  |  | 6,921 |  |  |  | 6,863 |
Other investments |  |  | 312 |  |  |  | 250 |  |  |  | 312 |  |  |  | 250 |
|  | $ | 40,002 |  |  | $ | 45,725 |  |  | $ | 35,721 |  |  | $ | 35,725 |
Securrency Inc [Member] |
Investment [Line Items] |
Summary of Inputs Used in PWERM Approach of Investment | The table below presents the probability ascribed to potential outcomes used in the PWERM, which resulted in the mark-down of the Securrency Series A Shares (classified as Level 3 in the fair value hierarchy). There was no mark-down applied to the Securrency Series B Shares, as they are a senior instrument.
|  | March 31, 2023 |
Conversion upon a future equity financing |  |  | 33.3 | %
Redemption upon a corporate transaction |  |  | 33.3 | %
Default |  |  | 33.4 | %
Securrency Convertible Secured Note [Member] |
Investment [Line Items] |
Summary of Inputs Used in PWERM Approach of Investment | The table below presents the probability ascribed to potential outcomes used in the PWERM (classified as Level 3 in the fair value hierarchy).
|  | June 30, 2023
Conversion of note upon a future equity financing |  | 50%
Redemption of note upon a corporate transaction |  | 30%
Default |  | 20%
Time to potential outcome (in years) |  | 0.31
Securrency Convertible Note [Member] |
Investment [Line Items] |
Summary of Inputs Used in PWERM Approach of Investment | The table below presents the probability ascribed to potential outcomes used in the PWERM (classified as Level 3 in the fair value hierarchy) and the time to exit:
|  | June 30, 2023 |  |  | December 31, 2022 |
Conversion of notes upon a future equity financing |  |  | 50% |  |  |  | 60% |
Redemption of notes upon a corporate transaction |  |  | 30% |  |  |  | 25% |
Default |  |  | 20% |  |  |  | 15% |
Time to potential outcome (in years) |  |  | 0.31 |  |  |  | 0.33 |
Fnality Convertible Note [Member] |
Investment [Line Items] |
Summary of Inputs Used in PWERM Approach of Investment | The table below presents the probability ascribed to potential outcomes used in the PWERM (classified as Level 3 in the fair value hierarchy) and the time to exit:
|  | June 30, 2023 |  |  | December 31, 2022 |
Conversion of note upon a future financing round |  |  | 95% |  |  |  | 85% |
Redemption of note upon a change of control |  |  | 0% |  |  |  | 10% |
Default |  |  | 5% |  |  |  | 5% |
Time to potential outcome (in years) |  |  | 0.08 |  |  |  | 0.25 |

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