Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Gross number of share options (or share units) granted during the period.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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SHARE BASED COMPENSATION (Details)		12 Months Ended
SHARE BASED COMPENSATION (Details)	Jan. 18, 2019 shares	Dec. 31, 2021 shares	Dec. 31, 2020 shares	Dec. 31, 2019 shares
SHARE BASED COMPENSATION
Share split ratio				500
2019 Plan
SHARE BASED COMPENSATION
Term (in years)	10 years
Granted	79,015,500	2,795,601	25,917,240	79,015,500
Share split ratio	500
2019 Plan \| The First Vesting Date
SHARE BASED COMPENSATION
Vesting percentage (as a percent)				25.00%
2019 Plan \| Vest on each anniversary day from the First Vesting Date thereafter over the next three years
SHARE BASED COMPENSATION
Vesting percentage (as a percent)		25.00%
Vesting period (in years)		3 years