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Digital Assets - Additional Information (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) Bitcoin | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) Bitcoin
Intangible Assets Net Excluding Goodwill [Abstract] |  |  |
Number of bitcoins purchased | Bitcoin | 20,857 |  |
Purchases of digital assets, amount | $ 1,086,375 | $ 0 |
Digital asset impairment losses | $ 194,095 | $ 0 |
Number of carrying value bitcoins | Bitcoin | 91,326 |  | 70,469
Digital assets | $ 1,946,582 |  | $ 1,054,302
Cumulative impairment of digital assets | 264,800 |  | $ 70,700
Sale of digital assets | $ 0 |  |

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