XML 64 R47.htm IDEA: XBRL DOCUMENT v3.22.1
Principal Accounting Policies - Summary of Property, Equipment and Software (Detail)
12 Months Ended
Dec. 31, 2021
Leasehold improvement [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Estimated Useful Lives Shorter of lease terms or estimated useful lives of the assets
Furniture and fixtures [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 5 years
Software [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 5 years
Minimum [Member] | Electronic equipment [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 3 years
Minimum [Member] | Motor vehicles [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 3 years
Maximum [Member] | Electronic equipment [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 5 years
Maximum [Member] | Motor vehicles [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Useful Life 5 years