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Investments - Details of Investments Carried at Cost (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investment [Line Items]
Investments	$ 14,238	$ 8,112
Securrency Inc. - Series A Convertible Preferred Stock - Carrying Value [Member]
Investment [Line Items]
Investments	8,488	8,112
Securrency Inc. - Series A Convertible Preferred Stock - Cost [Member]
Investment [Line Items]
Investments	8,112	8,112
Securrency Inc. - Series B Convertible Preferred Stock - Carrying Value [Member]
Investment [Line Items]
Investments	5,500
Securrency Inc. - Series B Convertible Preferred Stock - Cost [Member]
Investment [Line Items]
Investments	5,500
Subtotal – Securrency, Inc. - Carrying Value [Member]
Investment [Line Items]
Investments	13,988	8,112
Subtotal – Securrency, Inc. - Cost [Member]
Investment [Line Items]
Investments	13,612	8,112
Onramp Invest, Simple Agreement for Future Equity - Carrying Value
Investment [Line Items]
Investments	250
Onramp Invest, Simple Agreement for Future Equity - Cost
Investment [Line Items]
Investments	250
Investments - Carrying Value
Investment [Line Items]
Investments	14,238	8,112
Investments - Cost
Investment [Line Items]
Investments	$ 13,862	$ 8,112

X

- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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