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Taxation (Details 4)
¥ in Thousands
Dec. 31, 2021
CNY (¥)
Net operating tax loss carry forwards  
Net operating tax loss carry forwards ¥ 14,052,076
2022  
Net operating tax loss carry forwards  
Net operating tax loss carry forwards 689,266
2023  
Net operating tax loss carry forwards  
Net operating tax loss carry forwards 3,335,068
2024  
Net operating tax loss carry forwards  
Net operating tax loss carry forwards 3,243,489
2025  
Net operating tax loss carry forwards  
Net operating tax loss carry forwards 2,864,732
After 2026  
Net operating tax loss carry forwards  
Net operating tax loss carry forwards ¥ 3,919,521