FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Investments Measured at Fair Value on Recurring Basis

	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:
Foreign exchange forward contracts- receivable		640,876		-		640,876		-
Liabilities:
Convertible senior notes		423,739,708		-		-		423,739,708
Guarantee liabilities		226,086,556		-		-		226,086,556
Interest rate swap		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- payable		4,520,619		-		4,520,619
Convertible senior notes		65,342		-		-		65,342
Guarantee liabilities		148,187,615		-		-		148,187,615
Interest rate swap		26,486,388		-		-		26,486,388

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2018		Quote prices in active market for identical assets (Level 1)	Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Assets:
Guarantee receivables		197,431,047					197,431,047
Foreign exchange forward contracts- receivable		1,192,168			1,192,168
Foreign exchange options		846,718					846,718
Liabilities:
Convertible senior notes		68,632					68,632
Guarantee liabilities		92,404,068					92,404,068
Foreign exchange forward contracts- payable		9,463,728			9,463,728
Interest rate swap		12,786,001					12,786,001

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

	For the year ended December 31,
	2016			2017			2018
	RMB			RMB			RMB
Balance at January 1,		1,506,981,361			423,739,708			65,342
Foreign exchange (gain)/loss		43,448,795			(845,071	)		3,290
Change in fair value of convertible senior notes		92,015,957			-			-
Repurchase of convertible senior notes		(1,218,706,405	)		(422,829,295	)		-
Balance at December 31,		423,739,708			65,342			68,632

	For the year ended December 31,
	2016			2017		2018
	RMB			RMB		RMB
Balance at January 1,		17,490,323			-		-
Foreign exchange (gain)/loss		736,212			-		-
Change in fair value of capped call options		(18,226,535	)		-		-
Balance at December 31,		-			-		-

	For the year ended December 31,
	2016		2017		2018
	RMB		RMB		RMB
Balance at January 1,		-		-		-
Purchase of foreign exchange options		-		-		10,566,900
Change in fair value of foreign exchange options		-		-		(9,720,182	)
Balance at December 31,		-		-		846,718

Schedule of fair value of call spread option contracts

	For the year ended December 31,
	2016			2017		2018
	RMB			RMB		RMB
Balance at January 1,		7,277,406			-		-
Purchase of call spread option		4,761,603			-		-
Exercise of call spread options		(12,039,009	)		-		-
Balance at December 31,		-			-		-

Schedule of fair value of warrant liability

	For the year ended December 31,
	2016			2017		2018
	RMB			RMB		RMB
Balance at January 1,		68,377,608			-		-
Exchange loss on warrant liability		2,256,314			-		-
Change in fair value of warrant liability		(34,937,341	)		-		-
Repurchase of warrant liability		(35,696,581	)		-		-
Balance at December 31,		-			-		-

Schedule of Change in Fair Value of rate swap Derivatives

	For the year ended December 31,
	2016		2017		2018
	RMB		RMB		RMB
Balance at January 1,		-		10,364,075		26,486,388
Change in fair value of interest rate swap		10,364,075		16,122,313		(9,701,051	)
Cash settlement		-		-		(3,999,336	)
Balance at December 31,		10,364,075		26,486,388		12,786,001

Schedule of Change in Fair Value of Derivatives

	For the year ended December 31,
	2016			2017			2018
	RMB			RMB			RMB
Balance at January 1,		-			226,086,556			148,187,615
Additions		235,728,241			5,122,691			1,425,026
Amortization		(9,641,685	)		(47,292,776	)		(28,243,063	)
Cancellation		-			(35,728,856	)		(28,965,510	)
Balance at December 31,		226,086,556			148,187,615			92,404,068

	Foreign exchange forward						Type of derivatives
																	Foreign
For the year ended	contracts						Call spread		Interest			Capped call			Warrant		exchange
December 31,	Realized			Unrealized			options		Rate swap			options			liability		options			Total
(In RMB)
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	)
2018		(42,614,340	)		(1,475,360	)		-		9,701,051			-			-		(9,720,182	)		(44,108,831	)

	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

As of December 31, 2018

	Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2018		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		8,275,899,684		-		-		8,275,899,684		14,548,043