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Digital Assets - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Bitcoin	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Bitcoin
Intangible Assets Net Excluding Goodwill [Abstract]
Number of bitcoins purchased | Bitcoin			34,616
Purchases of digital assets, amount			$ 1,615,606	$ 0
Digital asset impairment losses	$ 424,774	$ 0	$ 618,869	$ 0
Number of carrying value bitcoins | Bitcoin			105,085		70,469
Digital assets	2,051,039		$ 2,051,039		$ 1,054,302
Cumulative impairment of digital assets			689,600		$ 70,700
Sale of digital assets	$ 0		$ 0

X

- Definition

Cumulative Impairment of Intangible Assets (Excluding Goodwill).

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- Definition

Gain loss on sale of digital assets.

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Number of bitcoins purchased.

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Number of carrying value bitcoins.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

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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
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- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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