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v3.23.2

Investments - Additional Information (Detail) £ in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2031 | Dec. 31, 2029 | Jun. 30, 2023 GBP (£) | Dec. 31, 2022 USD ($) | Mar. 31, 2021 shares | Dec. 31, 2019 shares
Investment [Line Items] |  |  |  |  |  |  |  |  |
Cost of Investments | $ 40,002 | $ 40,002 |  |  |  |  | $ 35,721 |  |
Unrealized gain (loss) on investments |  | $ 947 | $ (9,322) |  |  |  |  |  |
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% |  |  |  |  |  |  |
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 | 17.00% | 17.00% |  |  |  | 17.00% |  |  |
Impairment of investments | $ 0 |  | $ 0 |  |  |  |  |  |
Securrency - Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Number of shares purchased | shares |  |  |  |  |  |  |  |  | 5,178,488
Non-cumulative dividend |  | 6.00% |  |  |  |  |  |  |
Impairment of investments |  | $ 4,900 |  |  |  |  |  |  |
Securrency - Series B Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Number of shares purchased | shares |  |  |  |  |  |  |  | 2,004,665 |
Securrency Secured Convertible Note [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Ownership interest percentage | 9.00% | 9.00% |  |  |  | 9.00% |  |  |
Percentage of discount on future equity financing for preferred stock | 25.00% | 25.00% |  |  |  | 25.00% |  |  |
Unrealized gain (loss) on investments | $ 1,113 |  |  |  |  |  |  |  |
Debt instrument, redemption, description |  | upon the occurrence of a corporate transaction for an amount which is the greater of (i) an amount equal to (x) 1.25 times (y) the sum of the principal amount and all accrued interest of the note (the “Liquidity Premium”) and (ii) such amount as would have been payable to the Company if the note had been converted, immediately prior to such corporate transaction, into that number of shares of the then most senior series of preferred stock of Securrency obtained by dividing (A) the Liquidity Premium by (B) the applicable conversion price, as set forth in the note. |  |  |  |  |  |  |
Debt Instrument Maturity Date |  | Dec. 31, 2023 |  |  |  |  |  |  |
Securrency Secured Convertible Note [Member] | Accounting Standard Update 201601 [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Fair value | $ 10,000 | $ 10,000 |  |  |  |  |  |  |
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% |  |  |
Unrealized gain (loss) on investments | $ 428 | $ 958 |  |  |  |  |  |  |
Debt Instrument Maturity Date |  | Dec. 31, 2023 |  |  |  |  |  |  |
Fnality International Limited [Member] | Accounting Standard Update 201601 [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% |  |  |
Unrealized gain (loss) on investments | $ 3,785 | $ 664 |  |  |  |  |  |  |
Debt Instrument Maturity Date |  | Oct. 20, 2023 |  |  |  |  |  |  |
Securrency Convertible Note [Member] | Accounting Standard Update 201601 [Member] |  |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |  |
Fair value | $ 15,000 | $ 15,000 |  |  |  |  |  |  |

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