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PROPERTY AND EQUIPMENT - Additional Information (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Abstract]      
Depreciation expenses ¥ 17,710 ¥ 11,300 ¥ 4,098