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Taxation - Net Operating Loss Carry Forwards From PRC Entities (Detail)
¥ in Thousands
Mar. 31, 2021
CNY (¥)
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards ¥ 1,969,343
2021  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards 300,138
2022  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards 147,361
2023  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards 57,955
2024  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards 244,563
2025  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards 536,987
Thereafter  
Operating Loss Carryforwards [Line Items]  
Net operating loss carry forwards ¥ 682,339