LEASES - Components of Lease Expenses (Details)	12 Months Ended
Dec. 31, 2019 CNY (¥)
LEASES
Amortization of right-of-use assets	¥ 145,539,290
Interest of lease liabilities	45,811,621
Expenses for short-term lease within 12 months	5,064,442
Total lease cost	¥ 196,415,353

Amount of interest expense on finance lease liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

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-Section 55
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- References

No definition available.

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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