FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2017

FAIR VALUE MEASUREMENTS [Abstract]

Schedule of Investments Measured at Fair Value on Recurring Basis

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2015		Quote prices in active market for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Assets:
Call spread option		7,277,406		-		-		7,277,406
Foreign exchange forward contracts		7,038,537		-		7,038,537		-
Capped call options		17,490,323		-		-		17,490,323
Liabilities:
Foreign exchange forward contracts		4,295,737		-		4,295,737		-
Convertible senior notes		1,506,981,361		-		-		1,506,981,361
Warrant liability		68,377,608		-		-		68,377,608

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2016		Quote prices in active market for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Assets:
Guarantee receivables		235,728,241		-		-		235,728,241
Foreign exchange forward contracts		640,876		-		640,876		-
Liabilities:
Convertible senior notes		423,739,708		-		-		423,739,708
Guarantee liabilities		226,086,556		-		-		226,086,556
Rate cap derivative		10,364,075		-		-		10,364,075

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2017		Quote prices in active market for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Assets:
Guarantee receivables		174,882,132		-		-		174,882,132
Liabilities:
Foreign exchange forward contracts		4,520,619		-		4,520,619
Convertible senior notes		65,342		-		-		65,342
Guarantee liabilities		148,187,615		-		-		148,187,615
Rate cap derivative		26,486,388		-		-		26,486,388

Schedule of Reconciliation of Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		1,540,398,645		1,506,981,361		423,739,708
Issuance of convertible senior notes		-		-		-
Foreign exchange (gain)/loss		96,678,461		43,448,795		(845,071)
Change in fair value of convertible senior notes		8,400,918		92,015,957		-
Repurchase of convertible senior notes		(138,496,663)		(1,218,706,405)		(422,829,295)
Balance at December 31,		1,506,981,361		423,739,708		65,342

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		21,098,263		17,490,323		-
Foreign exchange (gain)/loss		2,562,342		736,212		-
Change in fair value of capped call options		(6,170,282)		(18,226,535)		-
Balance at December 31,		17,490,323		-		-

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		20,875,725		-		-
Receipt of available-for-sale investment		-		-		-
Foreign exchange gain/(loss)		-		-		-
Change in fair value of available-for-sale investment		-		-		-
Transfer to receivable (Note 2 (h))		(20,875,725)		-		-
Balance at December 31,		-		-		-

Schedule of fair value of call spread option contracts

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		-		7,277,406		-
Purchase of call spread option		7,647,843		4,761,603		-
Change in fair value of call spread		(370,437)		-		-
Exercise of call spread options		-		(12,039,009)		-
Balance at December 31,		7,277,406		-		-

Schedule of fair value of warrant liability

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		-		68,377,608		-
Issuance of warrant liability		62,331,211		-		-
Exchange loss on warrant liability		3,950,373		2,256,314		-
Change in fair value of warrant liability		2,096,024		(34,937,341)		-
Repurchase of warrant liability		-		(35,696,581)		-
Balance at December 31,		68,377,608		-		-

Schedule of Change in Fair Value of Derivatives

	For the year ended December 31,
	2015		2016		2017
	RMB		RMB		RMB
Balance at January 1,		-		-		10,364,075
Change in fair value of rate cap derivative		-		10,364,075		16,122,313
Balance at December 31,		-		10,364,075		26,486,388

	Type of derivatives
	Foreign exchange forward
For the year ended	contracts				Call spread		Rate cap		Capped call		Warrant
December 31,	Realized		Unrealized		options		derivative		options		liability		Total
(In RMB)
2015		71,000,875		(14,068,932)		(370,437)		-		(6,170,282)		(2,096,024)		48,295,200
2016		(53,202,660)		640,876		-		(10,364,075)		(18,226,535)		34,937,341		(46,215,053)
2017		(3,690,785)		(4,520,619)		-		(16,122,313)		-		-		(24,333,717)

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2015		Quote Prices in active market for identical assets (Level 1)		Significant other observable input (Level 2)		Significant unobservable input (Leval 3)		Total (losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		3,766,435,564		-		-		3,766,435,564		-

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2016		Quote Prices in active market for identical assets (Level 1)		Significant other observable input (Level 2)		Significant unobservable input (Leval 3)		Total (losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		4,738,681,353		-		-		4,738,681,353		125,524,021

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2016		Quote Prices in active market for identical assets (Level 1)		Significant other observable input (Level 2)		Significant unobservable input (Leval 3)		Total (losses)
	RMB		RMB		RMB		RMB
Property, plant and equipment, net		6,680,187,156		-		-		6,680,187,156		-