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Other Operating Income, Net - Schedule of Other Operating Income, Net (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)
Other Income and Expenses [Abstract]
VAT-in super deduction	¥ 12,423		¥ 7,981	¥ 2,412
Operating Income Other	2,554		868	161
Total	¥ 14,977	$ 2,350	¥ 8,849	¥ 2,573

X

- Definition

Income from value added tax in super deduction.

+ References

No definition available.

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X

- Definition

Operating Income Other

+ References

No definition available.

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- References

No definition available.

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- Definition

The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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