Other gains, net - Summary of Other (Losses), Net (Detail) ¥ in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
Aug. 31, 2022 CNY (¥)	Mar. 31, 2023 CNY (¥)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 CNY (¥)	Mar. 31, 2021 CNY (¥)
Other gains (losses), net [Abstract]
Gain from the re-measurement of the previously held equity interests to the fair value in the step acquisitions				¥ 127
Foreign exchange losses, net		¥ 2,679		5,322	¥ (2,867)
Gain on disposal of other debts					6,846
Reimbursement from a depositary bank				1,482	6,556
Investment loss		(178)		(622)	0
Gain on disposal of a subsidiary	¥ 3,600	3,597	$ 524
Others		(939)		(289)	797
Total		¥ 5,159		¥ 6,020	¥ 11,332

Reimbursement from a depositary bank.

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- Definition

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Amount of realized and unrealized gain (loss) on investment.

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Amount of gain (loss) on sale or disposal of other assets.

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Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries.

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The aggregate amount of gains or losses resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth).

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