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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of digital assets | $ 9,353 | $ 0 |
Purchase of other digital currencies |  |  | $ 287
Impairment of other digital currencies | 62 |  | 159
Digital Assets |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Aggregate cost basis of digital currency holdings | $ 42,994 |  | 41,964
Digital Assets | Other Digital Assets |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Digital assets |  |  | $ 66

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- Definition Impairment of Digital Assets + References No definition available. + Details
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Period Type: | duration

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- Definition Impairment of Other Digital Assets + References No definition available. + Details
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Balance Type: | debit
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- Definition Indefinite-Lived Intangible Assets, Cost Basis + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Details
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- Details
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Period Type: |