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Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Property and Equipment (Detail)	12 Months Ended
	Dec. 31, 2021
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	Shorter of lease term or the estimated useful lives of the assets
Minimum [Member] | Electric Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	3 years
Minimum [Member] | Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	3 years
Minimum [Member] | Motor Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	4 years
Minimum [Member] | Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	3 years
Maximum [Member] | Electric Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	5 years
Maximum [Member] | Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	5 years
Maximum [Member] | Motor Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	5 years
Maximum [Member] | Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	5 years

X

- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123364984&loc=d3e1205-110223

+ Details

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X

- 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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X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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- Details

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