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Revenue from Contracts with Customers - Schedule of Amounts of Transaction Prices Allocated to Remaining Performance Obligations (Unsatisfied or Partially Unsatisfied) (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Transaction Price Allocated To Remaining Performance Obligations [Line Items]    
Amounts expected to be recognised as revenue ¥ 2,941 ¥ 1,714
Within 1 Year    
Disclosure Of Transaction Price Allocated To Remaining Performance Obligations [Line Items]    
Amounts expected to be recognised as revenue 1,778 1,215
After 1 Year    
Disclosure Of Transaction Price Allocated To Remaining Performance Obligations [Line Items]    
Amounts expected to be recognised as revenue ¥ 1,163 ¥ 499