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Accruals And Other Liabilities - Schedule of Accruals And Other Liabilities (Parenthetical) (Detail) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2019 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2021 CNY (¥) | Mar. 31, 2020 CNY (¥) | Jan. 31, 2019 CNY (¥)
Payables And Accruals [Line Items] |  |  |  |  |
Initial reimbursement payment received | $ 935 |  |  |  | ¥ 6,297
Initial reimbursement payment, arrangement period | 5 years |  |  |  |
Initial reimbursement payment, recorded in other income |  |  | ¥ 1,267 | ¥ 1,303 |
Advance Share Based Payments Refunded To Employees |  |  |  |  |
Payables And Accruals [Line Items] |  |  |  |  |
Additional reimbursement payment received |  | $ 1,638 | ¥ 10,829 |  |

X
- Definition Additional reimbursement payment received. + References No definition available. + Details
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Period Type: | duration

X
- Definition Initial reimbursement payment, arrangement period. + References No definition available. + Details
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- Definition Initial reimbursement payment received. + References No definition available. + Details
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Period Type: | instant

X
- Definition Initial reimbursement payment, recorded in other gains. + References No definition available. + Details
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Namespace Prefix: | mogu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | mogu_
Data Type: | xbrli:stringItemType
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |