Reduction to ordinary shares available for future grant for each restricted share unit granted.

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- Definition

Share-based compensation arrangement by share-based payment award extended expiration period.

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award vested options expiration period.

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No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for 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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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- 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.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Share-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Dec. 02, 2021 shares	Nov. 30, 2017 shares	Dec. 31, 2017 shares	Dec. 31, 2021 CNY (¥) shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 $ / shares	Dec. 31, 2019 CNY (¥)	Dec. 31, 2019 $ / shares	Dec. 31, 2021 USD ($) shares	Oct. 18, 2010 shares
2010 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance				589,729,714						589,729,714	58,875,478
Plan expiration term				10 years	10 years
Plan extended expiration term				20 years	20 years
Vested options expiration term				90 days	90 days
Shares granted during the period				2,583,000	2,583,000
2010 Plan \| Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting term				4 years	4 years
Unrecognized compensation cost				¥ 1,111,673,000						$ 174,446
A weighted-average vesting period over which unrecognized compensation cost is expected to be recognized				2 years 21 days	2 years 21 days
Weighted-average grant-date fair value of options granted \| $ / shares					$ 1.88		$ 2.37		$ 2.83
Total fair value of options vested during period				¥ 1,072,572,000	$ 168,310	¥ 1,222,571,000		¥ 832,594,000
Intrinsic value of options exercised				¥ 95,024,000	$ 14,911	888,668,000		1,055,675,000
2010 Plan \| Vesting on First Anniversary \| Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage				25.00%	25.00%
2010 Plan \| Vesting on Quarterly Basis Thereafter \| Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage				75.00%	75.00%
2017 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan expiration term		10 years
Number of shares authorized to grant		720,000
2017 Plan \| Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting term				4 years	4 years
Unrecognized compensation cost \| ¥				¥ 0
Total fair value of options vested during period				¥ 595,000	$ 93	¥ 611,000		¥ 175,000
Shares granted during the period			720,000
Weighted average grant date fair value \| $ / shares					$ 0		$ 0		$ 0
2017 Plan \| Vesting on First Anniversary \| Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage				25.00%	25.00%
2021 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan expiration term	10 years
Vested options expiration term	90 days
Number of shares authorized to grant	364,000,000
Each restricted share unit granted shall reduce the number of ordinary shares available for future grants by	1.3
2021 Plan \| Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted during the period				0	0