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Goodwill (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure Text Block Supplement [Abstract]  
Schedule of changes in the carrying amount of goodwill
   As of December 31, 
   2019   2020 
   RMB’000   RMB’000 
Beginning balance   276,905    302,158 
Addition/(decrease) during the year (note 5)   25,253    (27,591)
Goodwill   302,158    274,567