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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.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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- Definition

Number of shares issued for each share of convertible preferred stock that is converted.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Cash received on stock transaction after deduction of issuance costs.

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No definition available.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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No definition available.

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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Shareholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands				12 Months Ended
	Sep. 23, 2020 CNY (¥) shares	Feb. 29, 2020 $ / shares shares	Jan. 08, 2020 CNY (¥) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥) shares	Dec. 31, 2021 CNY (¥) shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 17, 2021 USD ($) $ / shares shares	Sep. 03, 2021 shares	Dec. 31, 2020 $ / shares	Dec. 31, 2020 CNY (¥) shares	Sep. 23, 2020 $ / shares	Apr. 07, 2020 $ / shares shares	Jan. 08, 2020 $ / shares shares
Class of Stock [Line Items]
Fair value per ordinary share \| $ / shares														$ 0.76
Shares repurchased during the period value \| ¥					¥ 26,700,000
Common Stock, Par or Stated Value Per Share \| $ / shares							$ 0.001	$ 0.001		$ 0.001
Common stock shares authorised						40,000,000,000	40,000,000,000	40,000,000,000			4,000,000,000
Common Stock, Shares, Issued						3,805,284,810	3,805,284,810				3,546,124,955
Common Stock, Value, Issued						¥ 24,782,000	$ 3,889	$ 40,000			¥ 22,801,000
Camelot Group [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued									247,475,446
NASDAQ/NGS (GLOBAL SELECT MARKET) [Member]
Class of Stock [Line Items]
Sale of stock consideration received in the transaction \| ¥	¥ 1,881,233
Common Stock [Member]
Class of Stock [Line Items]
Shares repurchased during the period shares					5,475,254
Shares repurchased during the period value \| ¥					¥ 38,000
Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Common stock preferred stock and temporary equity shares authorised													4,000,000,000
Common Stock, Par or Stated Value Per Share \| $ / shares													$ 0.001
Common stock shares authorised													2,282,750,429
IPO [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares			30,000,000
Sale of stock issue price per share \| $ / shares														$ 1.13
Sale of stock consideration received in the transaction \| ¥			¥ 3,875,394
Number of shares of preferred stock converted into common stock														1,717,249,571
IPO [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares			450,000,000		517,500,000
Sale of stock issue price per share \| $ / shares														$ 17.00
Over-Allotment Option [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares			4,500,000
Over-Allotment Option [Member] \| NASDAQ/NGS (GLOBAL SELECT MARKET) [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares	1,250,000
Over-Allotment Option [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares			67,500,000
Over-Allotment Option [Member] \| Common Stock [Member] \| NASDAQ/NGS (GLOBAL SELECT MARKET) [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares	18,750,000
Follow On Offer [Member] \| NASDAQ/NGS (GLOBAL SELECT MARKET) [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares	120,000,000
Sale of stock issue price per share \| $ / shares												$ 2.07
Follow On Offer [Member] \| Common Stock [Member] \| NASDAQ/NGS (GLOBAL SELECT MARKET) [Member]
Class of Stock [Line Items]
Stock shares issued during the period shares	8,000,000
Sale of stock issue price per share \| $ / shares												$ 31.00
Series A Convertible Preferred Shares [Member] \| Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Preferred stock shares authorised													458,116,000
Series B Convertible Redeemable Preferred Shares [Member] \| Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Temporary equity shares authorised													153,603,600
Series C Redeemable Convertible Preferred Shares [Member] \| Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Temporary equity shares authorised													185,665,192
Series D Redeemable Convertible Preferred Shares [Member] \| Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Temporary equity shares authorised													842,738,782
Series D Plus Redeemable Convertible Preferred Shares [Member] \| Revision In Authorised Capital [Member]
Class of Stock [Line Items]
Temporary equity shares authorised													77,125,997
Executive Officer [Member]
Class of Stock [Line Items]
Repurchase price per share \| $ / shares		$ 0.70
Shares repurchased during the period shares		5,475,254
Shares repurchased during the period value \| $				$ 0