Prepayments and other current assets - Summary of Prepayments and Other Current Assets (Detail) ¥ in Thousands, $ in Thousands	Mar. 31, 2022 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 CNY (¥)
Prepaid Expense and Other Assets, Current [Abstract]
Prepayments for purchases of products	¥ 52,348		¥ 53,209
Vendor rebate receivables	24,462		8,723
Value-added tax ("VAT") deductible	18,864		10,672
Loan receivables	3,845		3,957
Sales return assets	1,264		1,244
Deposits	1,312		1,456
Others	14,643		6,000
Total	¥ 116,738	$ 18,415	¥ 85,261

Prepayments for purchases of products .

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- Definition

Sales return assets.

+ References

No definition available.

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- Definition

Value-added tax .

+ References

No definition available.

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- Definition

Vendor rebate receivables.

+ References

No definition available.

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- Definition

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

+ References

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- Definition

Amount, after allowance for credit loss, of financing receivable, classified as current. Includes, but is not limited to, notes and loan receivable.

+ References

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- Definition

Amount of current assets classified as other.

+ References

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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