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Taxation - Summary of Operating Loss Carry Forward (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards ¥ 112,248 ¥ 72,988
Loss expiring in 2022    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 7,626  
Loss expiring in 2023    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 5,620  
Loss expiring in 2024    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 18,949  
Loss expiring in 2025    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 22,150  
Loss expiring in 2026    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 64,533  
Loss expiring in 2027    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 15,141  
Loss expiring in 2028    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 47,863  
Loss expiring in 2029    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 156,879  
Loss expiring in 2030    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 156,066  
Loss expiring in 2031    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 207,664  
Operating loss carry forwards    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards ¥ 702,491