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Share-Based Compensation - Summary of Assumptions Used to Value the Share Options Granted to Employees (Detail)	May 01, 2021 CNY (¥)	Oct. 15, 2020 CNY (¥)	Feb. 15, 2019 CNY (¥)	May 25, 2018 CNY (¥)	May 01, 2021 $ / shares	Oct. 15, 2020 $ / shares	Feb. 15, 2019 $ / shares	May 25, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate	0.74%	0.74%	2.66%	2.93%
Volatility	38.00%	37.60%	38.70%	38.70%
Expected exercise multiple	2.30	2.30	2.30	2.80
Dividend yield
Expected life	10 years	10 years	10 years	10 years
Exercise price | $ / shares					$ 1.2951	$ 1.7951	$ 1.7951	$ 1.7951
Fair value of ordinary shares | ¥	¥ 21.72	¥ 19.03	¥ 26.80	¥ 37.82

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- Definition

Expected exercise multiple.

+ References

No definition available.

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- Definition

Fair value of ordinary shares.

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

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