CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues
Revenues	$ 182,571,852us-gaap_Revenues	$ 108,999,805us-gaap_Revenues	$ 86,858,401us-gaap_Revenues
Cost of revenues
Total cost of revenues	(139,308,511)us-gaap_CostOfRevenue	(135,103,408)us-gaap_CostOfRevenue	(124,290,384)us-gaap_CostOfRevenue
Gross (loss) profit	43,263,341us-gaap_GrossProfit	(26,103,603)us-gaap_GrossProfit	(37,431,983)us-gaap_GrossProfit
Operating (expenses) income:
Selling, general and administrative expenses	(10,293,851)	(18,132,515)	(12,930,198)
Research and development expenses	(1,486,978)us-gaap_ResearchAndDevelopmentExpense	(3,391,012)us-gaap_ResearchAndDevelopmentExpense	(4,130,533)us-gaap_ResearchAndDevelopmentExpense
Other operating income, net	552,444us-gaap_OtherOperatingIncome	5,420,777us-gaap_OtherOperatingIncome	8,729,301us-gaap_OtherOperatingIncome
Long-lived asset impairment		(158,424,827)	(42,754,481)
Total operating expenses	(11,228,385)us-gaap_OperatingExpenses	(174,527,577)us-gaap_OperatingExpenses	(51,085,911)us-gaap_OperatingExpenses
(Loss) income from operations	32,034,956us-gaap_OperatingIncomeLoss	(200,631,180)us-gaap_OperatingIncomeLoss	(88,517,894)us-gaap_OperatingIncomeLoss
Interest expense	(15,654,106)us-gaap_InterestExpense	(19,349,190)us-gaap_InterestExpense	(15,408,023)us-gaap_InterestExpense
Interest income	324,118us-gaap_InvestmentIncomeInterest	149,752us-gaap_InvestmentIncomeInterest	990,117us-gaap_InvestmentIncomeInterest
Exchange (loss) gain	(55,792)	11,875	(55,800)
(Loss) income before income taxes	16,649,176	(219,818,743)	(102,991,600)
Income tax expense		(1,271,765)us-gaap_IncomeTaxExpenseBenefit	(10,253,587)us-gaap_IncomeTaxExpenseBenefit
Net (loss) income from continuing operations	16,649,176	(221,090,508)	(113,245,187)
Total (loss) discontinued operations			(2,392,228)
Net (loss) income	16,649,176us-gaap_ProfitLoss	(221,090,508)us-gaap_ProfitLoss	(115,637,415)us-gaap_ProfitLoss
Net (loss) income attributable to non-controlling interest		(150,147,024)	(3,708,474)
Net (loss) income attributable to Daqo New Energy Corp. ordinary shareholders	16,649,176us-gaap_NetIncomeLoss	(70,943,484)us-gaap_NetIncomeLoss	(111,928,941)us-gaap_NetIncomeLoss
NET (LOSS) EARNINGS PER ORDINARY SHARE
Continuing operations	$ 0.08	$ (0.41)	$ (0.63)
Discontinued operations			$ (0.01)
Basic-ordinary shares	$ 0.08us-gaap_EarningsPerShareBasic	$ (0.41)us-gaap_EarningsPerShareBasic	$ (0.64)us-gaap_EarningsPerShareBasic
Continuing operations	$ 0.08	$ (0.41)	$ (0.63)
Discontinued operations			$ (0.01)
Diluted-ordinary shares	$ 0.08us-gaap_EarningsPerShareDiluted	$ (0.41)us-gaap_EarningsPerShareDiluted	$ (0.64)us-gaap_EarningsPerShareDiluted
ORDINARY SHARES USED IN CALCULATING EARNINGS PER ORDINARY SHARE
Basic-ordinary shares	206,349,976	173,068,420	175,067,343
Diluted-diluted shares	211,353,643	173,068,420	175,067,343
Products [Member] \| Third parties [Member]
Revenues
Revenues	158,256,486	93,710,464	81,929,050
Products [Member] \| Related parties [Member]
Revenues
Revenues	15,840,860	13,471,866	2,799,427
Service Fee [Member] \| Third parties [Member]
Revenues
Revenues	5,165,254	1,817,475	2,129,924
Service Fee [Member] \| Related parties [Member]
Revenues
Revenues	$ 3,309,252

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