XML 53 R36.htm IDEA: XBRL DOCUMENT v3.21.1
Significant accounting policies (Tables)
 12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Schedule of estimated useful lives
  Buildings   20 years
       
  Leasehold improvements   Shorter of the lease term and the estimated useful lives of the assets
       
  Motor vehicles   5 years
       
  Equipment, fixture and furniture, and other fixed assets   2 - 10 years
Schedule of Amortization of finite-lived intangible assets
  Trademark   10 years
       
  Backlog   3 years
       
  Customer relationship   5.5 years
       
  Reacquired right   1 year
Schedule of summarizes the effect on the consolidated balance sheet
   December 31,
2018
As previously reported		   Effect of the adoption of
ASC 842		   January 1,
2019
As adjusted		 
Current portions:            
Prepayment and other current assets   104,761    (10,612)   94,149 
Current operating lease liabilities   -    99,706    99,706 
                
Non-current portions：               
Operating lease right-of-use assets   -    397,490    397,490 
Intangible assets, net   36,904    (6,305)   30,599 
Operating lease liabilities   -    280,867    280,867