Share based compensation arrangement by share based payment award options outstanding weighted average intrinsic value.

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- Definition

Share based compensation by share based payment arrangement percentage of shares after exercise date subject to restriction from transferring.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of expense recognized from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments), awarded to key employees or individuals. Excludes amount related to plans that cover generally all employees (for example, but not limited to, qualified pension plans).

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- Definition

The number of grants made 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

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

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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

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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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Number of options outstanding, including both vested and non-vested options.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

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

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Number of options vested.

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No definition available.

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Number of share options (or share units) exercised during the current period.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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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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SHARE-BASED COMPENSATION - Additional Information (Detail)									1 Months Ended				12 Months Ended				26 Months Ended
	Apr. 01, 2019 $ / shares shares	Dec. 01, 2018 $ / shares shares	Apr. 01, 2018 $ / shares shares	Nov. 12, 2017 $ / shares shares	Mar. 16, 2017 $ / shares shares	Oct. 18, 2016 shares	Oct. 17, 2016 shares	Apr. 21, 2016 shares	Jul. 31, 2019 CNY (¥)	Jul. 31, 2017 $ / shares shares	Jul. 31, 2017 ¥ / shares shares	Aug. 31, 2014 shares	Sep. 30, 2021 CNY (¥) shares	Sep. 30, 2021 $ / shares shares	Sep. 30, 2020 CNY (¥) shares	Sep. 30, 2019 CNY (¥)	Oct. 18, 2016 $ / shares	Oct. 18, 2016 ¥ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation stock options outstanding number													34,200,000	34,200,000	41,750,000
Number of Options - Vested or expected to vest													34,200,000	34,200,000
Compensation expenses for shares granted \| ¥													¥ 15,806,000		¥ 16,045,000	¥ 8,173,000
IPO [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses for shares granted \| ¥													¥ 0
Stock Option A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options vested													0
Exercise of share-based compensation, shares													0
Share based compensation stock options outstanding number													10,250,000	10,250,000	10,600,000
Number of Options - Vested or expected to vest													10,250,000	10,250,000	10,600,000
Share based compensation stock options outstanding weighted average intrinsic value \| ¥													0
Stock Option A \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of total converted ordinary shares each year after the exercise date subject to restriction from transferring													25.00%
Stock Option A \| Management, Employees and Non employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options granted						26,860,000	26,860,000	26,860,000				26,860,000
Share options granted, exercise price per share \| (per share)																	$ 0.31	¥ 2.00
Share options granted, vesting percentage on the first and second anniversary after the IPO date													50.00%
Stock Option B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation stock options outstanding number													23,950,000	23,950,000	31,150,000
Share based compensation stock options outstanding weighted average intrinsic value \| ¥													0
Compensation expenses for shares granted \| ¥													¥ 0
Stock Option B \| Management And Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options granted										43,140,000	43,140,000
Share options granted, exercise price per share \| (per share)										$ 0.31	¥ 2.00
Share-based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses for shares granted \| ¥													1,236,000		¥ 16,045,000	0
Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses for shares granted \| ¥													¥ 14,570,000		¥ 0	¥ 8,173,000
Restricted Share Units \| 2017 RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of ordinary shares \| ¥									¥ 5,190,000
Restricted Share Units \| Consulting Company \| 2021 RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share units, issued													25,000,000
Restricted share units, measurement date fair value \| $ / shares														$ 90,000.00
Restricted Share Units \| Consulting Company \| 2017 RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share units, issued	2,600,000	2,800,000	2,800,000	2,600,000	2,600,000								15,990,000
Restricted share units, measurement date fair value \| $ / shares	$ 250,000	$ 200,000	$ 100,000	$ 60,000.00	$ 50,000.00
Restricted share units, vested													5,200,000
Restricted share units, right to repurchase the remaining shares													10,790,000	10,790,000
Yijia Inc
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved													86,000,000	86,000,000