|9 Months Ended|
Sep. 30, 2021
|Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]|
|Summary of Additional Information About Cryptocurrencies||
The following table presents additional information about cryptocurrencies:
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef