XML 119 R90.htm IDEA: XBRL DOCUMENT v3.21.1
LOANS AND BORROWINGS - Short-term borrowings secured (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Short-term borrowings    
Weighted average interest rates of short-term borrowings 4.67% 5.64%
Accounts receivable    
Short-term borrowings    
Assets to secure short-term borrowings ¥ 76,547 ¥ 11,535