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Cryptocurrencies - Summary of the Adjusted Cost Basis of Cryptocurrencies (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of cryptocurrencies |  |  |  |  |  |  | $ 0 | $ 0
Cryptocurrencies [Member] |  |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Beginning balance | $ 600,000 | $ 441,000 | $ 712,000 | $ 811,000 | $ 402,000 | $ 540,000 | 712,000 | 540,000
Purchase or receipts of cryptocurrency | 98,470,000 | 121,874,000 | 108,094,000 | 139,065,000 | 153,351,000 | 127,537,000 |  |
Cost of cryptocurrencies sold or distributed | (95,272,000) | (119,675,000) | (106,303,000) | (137,288,000) | (150,552,000) | (125,488,000) |  |
Impairment of cryptocurrencies | (2,487,000) | (2,040,000) | (2,062,000) | (1,793,000) | (2,390,000) | (2,187,000) | (6,600,000) | (6,400,000)
Ending Balance | 1,311,000 | 600,000 | 441,000 | 795,000 | 811,000 | 402,000 | 1,311,000 | 795,000
Cryptocurrencies [Member] | Bitcoin [Member] |  |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Beginning balance | 599,000 | 440,000 | 711,000 | 810,000 | 401,000 | 523,000 | 711,000 | 523,000
Purchase or receipts of cryptocurrency | 98,470,000 | 121,874,000 | 108,094,000 | 139,065,000 | 153,351,000 | 127,530,000 |  |
Cost of cryptocurrencies sold or distributed | (95,272,000) | (119,675,000) | (106,303,000) | (137,288,000) | (150,552,000) | (125,465,000) |  |
Impairment of cryptocurrencies | (2,487,000) | (2,040,000) | (2,062,000) | (1,793,000) | (2,390,000) | (2,187,000) |  |
Ending Balance | 1,310,000 | 599,000 | 440,000 | 794,000 | 810,000 | 401,000 | 1,310,000 | 794,000
Cryptocurrencies [Member] | Ethereum [Member] |  |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Beginning balance | 1,000 | 1,000 | 1,000 | 1,000 | 1,000 | 9,000 | 1,000 | 9,000
Purchase or receipts of cryptocurrency |  |  |  |  |  | 4,000 |  |
Cost of cryptocurrencies sold or distributed |  |  |  |  |  | (12,000) |  |
Ending Balance | $ 1,000 | $ 1,000 | $ 1,000 | $ 1,000 | $ 1,000 | 1,000 | $ 1,000 | 1,000
Cryptocurrencies [Member] | Litecoin [Member] |  |  |  |  |  |  |  |
Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | 8,000 |  | $ 8,000
Purchase or receipts of cryptocurrency |  |  |  |  |  | 3,000 |  |
Cost of cryptocurrencies sold or distributed |  |  |  |  |  | $ (11,000) |  |

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