XML 71 R54.htm IDEA: XBRL DOCUMENT v3.22.1
Significant Accounting Policies - Summary of Advertising and Promotional Service Providers (Detail) - Advertising And Promotional Service Expense [Member] - Number
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of Advertising and Promotional Service Providers [Line Items]      
Number of service providers that accounted for 10% or more of the Group's advertising and promotional expense 198 203 236
Supplier Concentration Risk [Member]      
Disclosure of Advertising and Promotional Service Providers [Line Items]      
Number of service providers that accounted for 10% or more of the Group's advertising and promotional expense 2 3 2
Customer Concentration Risk [Member] | Accounts Receivable [Member]      
Disclosure of Advertising and Promotional Service Providers [Line Items]      
Concentration risk, percentage 44.90% 38.10% 36.00%