Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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-Publisher FASB
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Inventories, net of inventory reserves - Summary of Inventories, Net of Inventory Reserves (Detail) ¥ in Thousands, $ in Thousands	Mar. 31, 2022 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 CNY (¥)
Inventory [Line Items]
Inventory, Net	¥ 109,921	$ 17,340	¥ 91,551
Products [Member]
Inventory [Line Items]
Inventory, Net	109,383		90,913
Packaging materials and others [Member]
Inventory [Line Items]
Inventory, Net	¥ 538		¥ 638