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LONG-TERM INVESTMENTS - Additional Information (Detail)
¥ in Thousands
1 Months Ended 12 Months Ended
Sep. 29, 2020
CNY (¥)
Sep. 29, 2020
USD ($)
Jan. 31, 2020
CNY (¥)
May 31, 2019
CNY (¥)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2020
USD ($)
Sep. 29, 2020
USD ($)
Mar. 13, 2020
shares
Long Term Investments [Line Items]                    
Income (loss) from investment in affiliates         ¥ (7,509) $ (1,151,000) ¥ 378      
Long-term investment         87,551   3,826 $ 13,418,000    
Keen Best                    
Long Term Investments [Line Items]                    
Number of ordinary shares acquired | shares                   35
Equity Percent Acquired                   35.00%
Purchase price for shares ¥ 91,957 $ 13,544,000                
Goodwill ¥ 1,508               $ 231,000  
Income (loss) from investment in affiliates         822 126,000        
Impairment on investment | $           $ 0        
SG Fintech Joint Stock Company                    
Long Term Investments [Line Items]                    
Equity Percent Acquired     24.10% 24.90%            
Income (loss) from investment in affiliates         6,687          
Impairment on investment         ¥ 49          
Investment income, net             ¥ 378      
Cash consideration     ¥ 3,378 ¥ 3,400