Quarterly report pursuant to Section 13 or 15(d)

NATURE OF OPERATIONS, BASIS OF PRESENTATION AND CONSOLIDATION (Details)

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NATURE OF OPERATIONS, BASIS OF PRESENTATION AND CONSOLIDATION (Details)
¥ in Millions, $ in Millions
3 Months Ended
Mar. 31, 2020
shares
Mar. 31, 2019
shares
Dec. 31, 2019
CNY (¥)
Dec. 31, 2019
USD ($)
Restricted Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive shares excluded from calculation of earnings per share in periods when losses are reported (in shares) 940,476 57,894    
China        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Restricted cash     ¥ 20 $ 2.9