Number of restricted shares each right entitles the holder to purchase after the Share Subdivision.

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- Definition

Period over which subscription rights at the subscription price can be exercised, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which underlying ordinary shares may not be transferred from the date of subscription of the relevant rights, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

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

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- Definition

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

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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

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

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No definition available.

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

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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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Share-based awards- Partner Capital Investment Plan (Details) ¥ in Millions	6 Months Ended		12 Months Ended
	Sep. 30, 2020 CNY (¥) shares	Sep. 30, 2019 CNY (¥)	Mar. 31, 2020 $ / shares shares	Mar. 31, 2019 $ / shares shares	Mar. 31, 2018 $ / shares shares	Mar. 31, 2017 $ / shares shares	Mar. 31, 2016 $ / shares shares	Dec. 31, 2015 $ / shares shares	Dec. 31, 2014 $ / shares shares	Dec. 31, 2013 $ / shares shares	Sep. 30, 2020 $ / shares
Share-based awards
Number of shares underlying available for offering	299,872,568
Share-based compensation expense \| ¥	¥ 32,409	¥ 15,260
Partner Capital Investment Plan relating to ordinary shares of the Company \| Subscription rights
Share-based awards
Number of restricted shares each right entitles the holder to purchase after the Share Subdivision	8		8	8	8	8	8	8	8	8
Agreed-upon exercise price \| $ / shares								$ 14.50	$ 14.50	$ 14.50
Subscription period	10 years		10 years	10 years	10 years	10 years	10 years	4 years	4 years	4 years
Restriction period for the transfer shares								8 years	8 years	8 years
Number of shares underlying	144,000,000
Number of shares underlying available for offering	18,660,976
Unamortized compensation costs \| ¥	¥ 559
Weighted average period over which unamortized compensation costs expected be recognized	4 years 2 months 12 days
Partner Capital Investment Plan relating to ordinary shares of the Company \| Subscription rights \| Before the Share Subdivision
Share-based awards
Number of shares underlying	18,000,000
Number of shares underlying available for offering	2,332,622
Partner Capital Investment Plan relating to ordinary shares of the Company \| Subscription rights \| Minimum
Share-based awards
Agreed-upon exercise price \| $ / shares			$ 23.00	$ 23.00	$ 23.00	$ 23.00	$ 23.00				$ 23.00
Partner Capital Investment Plan relating to ordinary shares of the Company \| Subscription rights \| Maximum
Share-based awards
Agreed-upon exercise price \| $ / shares			$ 26.00	$ 26.00	$ 26.00	$ 26.00	$ 26.00				$ 26.00