Number of equal installments in which the awards can be granted under the share-based payment arrangement.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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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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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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SHARE-BASED COMPENSATION - Narrative (Details)	1 Months Ended		12 Months Ended
SHARE-BASED COMPENSATION - Narrative (Details)	Sep. 30, 2018 shares	Mar. 31, 2018 shares	Dec. 31, 2025 CNY (¥) shares	Dec. 31, 2024 CNY (¥) installment shares	Dec. 31, 2023 CNY (¥) installment shares
Unvested restricted share units
SHARE-BASED COMPENSATION
Total fair value of restricted share units vested \| ¥			¥ 22,711,848	¥ 33,121,118	¥ 47,144,928
Unrecognized compensation expense \| ¥			¥ 39,331,351
Unrecognized compensation expense, recognition period			2 years 7 months 28 days
Number of awards granted (in shares)			6,339,600
Unvested restricted share units \| Share-Based Payment Arrangement, Tranche One
SHARE-BASED COMPENSATION
Number of equal installments in which the awards will vest \| installment					4
Unvested restricted share units \| Share-Based Payment Arrangement, Tranche Two
SHARE-BASED COMPENSATION
Number of awards granted (in shares)				320,000
Number of equal installments in which the awards will vest \| installment				2
Amended 2016 Plan
SHARE-BASED COMPENSATION
Maximum aggregate shares that may be issued		5,861,480
Expiration period		10 years
2018 Share Incentive Plan
SHARE-BASED COMPENSATION
Maximum aggregate shares that may be issued	6,733,703
Maximum percentage of total ordinary shares issued and outstanding that may be issued	1.50%		1.50%	1.50%	1.50%
Maximum aggregate shares that may be issued, annual increase			2,337,681	2,326,755	2,313,923
Granted (in shares)			0	0	0
Unrecognized compensation expense \| ¥					¥ 0
Amended 2016 Plan and 2018 Plan
SHARE-BASED COMPENSATION
Total intrinsic value of share options exercised \| ¥			¥ 1,396,873	¥ 994,926	4,799,425
Total fair value of share options vested \| ¥					¥ 11,027,023