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CONDENSED FINANCIAL INFORMATION OF THE PARENT COMPANY - Summary of Condensed Balance Sheets of the Parent Company (Parenthetical) (Detail) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Nov. 30, 2017
Condensed Balance Sheet Statements, Captions [Line Items]        
Common Stock, Par or Stated Value Per Share $ 0.000005 $ 0.000005   $ 0.0001
Common Stock, Shares Authorized 20,000,000,000 20,000,000,000 20,000,000,000 500,000,000
Treasury Stock, Shares 12,255,830 25,525,810    
Parent Company [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Common Stock, Par or Stated Value Per Share $ 0.000005 $ 0.000005    
Common Stock, Shares Authorized 20,000,000,000 20,000,000,000    
Treasury Stock, Shares 12,255,830 25,525,810    
Parent Company [Member] | Common Class A [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Common Stock, Shares, Issued   1,208,831,222    
Common Stock, Shares, Outstanding 1,196,575,392 1,183,305,412    
Parent Company [Member] | Common Class B [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Common Stock, Shares, Issued 949,960,000      
Common Stock, Shares, Outstanding 949,960,000 949,960,000