SHARE BASED COMPENSATION - Summary of Non-vested Shares (Details) - CNY (¥)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted-average fair value on grant date (RMB/Share)
Fair Value Of Shares Vested	¥ 65,621,884	¥ 63,100,120	¥ 70,106,939

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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