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Related Party Transactions And Balances - Schedule of Balances with Major Related Parties (Detail)
¥ in Thousands, $ in Thousands
Mar. 31, 2021
CNY (¥)
Mar. 31, 2021
USD ($)
Mar. 31, 2020
CNY (¥)
Related Party Transaction [Line Items]      
Due from related party ¥ 6,061 $ 925 ¥ 57
Due to related party (6,234) $ (951) (12,018)
Tencent Group      
Related Party Transaction [Line Items]      
Due from related party 6,061   57
Due to related party ¥ (6,234)   ¥ (12,018)