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BUSINESS COMBINATION - (Details) - CNY (¥)
¥ in Thousands
Jun. 30, 2020
Apr. 30, 2020
Henan Zhongzhou Logistics    
Disclosure of detailed information about business combination [line items]    
Equity interest acquired (as a percent)   100.00%
Chongqing Xinan Transportation    
Disclosure of detailed information about business combination [line items]    
Equity interest acquired (as a percent) 51.00%  
Consideration transferred ¥ 8,189