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v3.22.2.2

Investments - Additional Information (Detail) £ in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Mar. 31, 2031 | Dec. 31, 2029 | Sep. 30, 2022 GBP (£) | Dec. 31, 2021 USD ($) | Mar. 31, 2021 shares | Dec. 31, 2019 shares
Investment [Line Items] |  |  |  |  |  |  |  |  |
Cost of Investments | $ 26,339 | $ 26,339 |  |  |  |  | $ 14,238 |  |
Percentage Of Voting Approval Required To Redeem All Of The Outstanding Notes At Maturity |  | 50.00% |  |  |  |  |  |  |
Percentage of voting approval required to redeem all of the outstanding notes before maturity |  | 75.00% |  |  |  |  |  |  |
Unrealized gain (loss) on investments |  | $ (15,633) | $ (2,099) |  |  |  |  |  |
Percentage of outstanding convertible note |  | 75 |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Percentage of voting approval required to redeem all of the outstanding series a shares |  |  |  |  | 60.00% |  |  |  |
Percentage of voting approval required to redeem all of the outstanding series B shares |  |  |  | 90.00% |  |  |  |  |
Securrency Inc [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Cost of Investments | $ 13,612 | $ 13,612 |  |  |  |  |  |  |
Ownership interest percentage | 22.00% | 22.00% |  |  |  | 22.00% |  |  |
Original fully diluted ownership interest percentage | 18.00% | 18.00% |  |  |  | 18.00% |  |  |
Securrency - Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Number of shares purchased | shares |  |  |  |  |  |  |  |  | 5,178,488
Non-cumulative dividend |  | 6.00% |  |  |  |  |  |  |
Unrealized gain (loss) on investments |  |  | $ 376 |  |  |  |  |  |
Securrency - Series B Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Number of shares purchased | shares |  |  |  |  |  |  |  | 2,004,665 |
Onramp Invest, LLC [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Cost of Investments | $ 250 | $ 250 |  |  |  |  |  |  |
Percentage of discount on future equity financing for preferred stock | 20.00% | 20.00% |  |  |  | 20.00% |  |  |
Impairment Of Investments | $ 0 | $ 0 |  |  |  |  |  |  |
Unrealized gain (loss) on investments | $ 0 | $ 62 |  |  |  |  |  |  |
Fnality International Limited [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Ownership interest percentage | 5.00% | 5.00% |  |  |  | 5.00% |  |  |
Percentage of discount on future equity financing for preferred stock | 20.00% | 20.00% |  |  |  | 20.00% |  |  |
Debt Instrument Maturity Date |  | Dec. 31, 2023 |  |  |  |  |  |  |
Unrealized gain (loss) on investments | $ (238) | $ (668) |  |  |  |  |  |  |
Fnality International Limited [Member] | Accounting Standards Update 2016-01 [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Fair value | $ 6,863 | $ 6,863 |  |  |  | £ 5,000 |  |  |
Securrency Convertible Note [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Ownership interest percentage | 7.00% | 7.00% |  |  |  | 7.00% |  |  |
Percentage of discount on future equity financing for preferred stock | 25.00% | 25.00% |  |  |  | 25.00% |  |  |
Debt Instrument Maturity Date |  | Apr. 21, 2023 |  |  |  |  |  |  |
Unrealized gain (loss) on investments | $ 565 | $ 844 |  |  |  |  |  |  |
Securrency Convertible Note [Member] | Accounting Standards Update 2016-01 [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Fair value | $ 5,000 | $ 5,000 |  |  |  |  |  |  |

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