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RELATED PARTY TRANSACTIONS AND BALANCES (Details) | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  |  |  | 12 Months Ended |
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Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2011 Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2010 Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2012 Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2011 Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2010 Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2012 Prepayment Received [Member] USD ($) | Dec. 31, 2011 Prepayment Received [Member] USD ($) | Dec. 31, 2010 Prepayment Received [Member] USD ($) | Dec. 31, 2012 Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2011 Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2010 Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2012 Processing Fees [Member] USD ($) | Dec. 31, 2011 Processing Fees [Member] USD ($) | Dec. 31, 2010 Processing Fees [Member] USD ($) | Dec. 31, 2012 Rental Expenses [Member] USD ($) | Dec. 31, 2011 Rental Expenses [Member] USD ($) | Dec. 31, 2010 Rental Expenses [Member] USD ($) | Dec. 31, 2012 Service Expenses [Member] USD ($) | Dec. 31, 2011 Service Expenses [Member] USD ($) | Dec. 31, 2010 Service Expenses [Member] USD ($) | Dec. 31, 2012 Cash Proceeds from Transactions [Member] USD ($) | Dec. 31, 2011 Cash Proceeds from Transactions [Member] USD ($) | Dec. 31, 2010 Cash Proceeds from Transactions [Member] USD ($) | Dec. 31, 2012 Cash Payments for Transactions [Member] USD ($) | Dec. 31, 2011 Cash Payments for Transactions [Member] USD ($) | Dec. 31, 2010 Cash Payments for Transactions [Member] USD ($) | Dec. 31, 2012 Daqo Group [Member] USD ($) | Dec. 31, 2011 Daqo Group [Member] USD ($) | Dec. 31, 2010 Daqo Group [Member] USD ($) | Dec. 31, 2012 Daqo Group [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2011 Daqo Group [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2010 Daqo Group [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2012 Daqo Group [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2011 Daqo Group [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2010 Daqo Group [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2012 Daqo Group [Member] Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2011 Daqo Group [Member] Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2010 Daqo Group [Member] Disposition of Subsidiary [Member] USD ($) | Dec. 31, 2012 Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2011 Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2010 Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Sep. 30, 2010 Daqo Group [Member] Capital Conversion [Member] USD ($) | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] USD ($) | Dec. 31, 2011 Zhengjiang Daqo Solar Co. Ltd [Member] USD ($) | Dec. 31, 2010 Zhengjiang Daqo Solar Co. Ltd [Member] USD ($) | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] Daqo Group [Member] | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] Wafer [Member] USD ($) | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] Polysilicon [Member] USD ($) | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2011 Zhengjiang Daqo Solar Co. Ltd [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2010 Zhengjiang Daqo Solar Co. Ltd [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2012 Zhengjiang Daqo Solar Co. Ltd [Member] Processing Fees [Member] USD ($) | Dec. 31, 2011 Zhengjiang Daqo Solar Co. Ltd [Member] Processing Fees [Member] USD ($) | Dec. 31, 2010 Zhengjiang Daqo Solar Co. Ltd [Member] Processing Fees [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Daqo Group [Member] | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] Proceeds from Financing Transaction [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] Payments for Financing Transaction [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Loan Extended [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] Loan Extended [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] Loan Extended [Member] USD ($) | Jul. 31, 2010 Daqo Solar Co Ltd [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2012 Daqo Solar Co Ltd [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2011 Daqo Solar Co Ltd [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2010 Daqo Solar Co Ltd [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2012 Nanjing Daqo [Member] USD ($) | Dec. 31, 2011 Nanjing Daqo [Member] USD ($) | Dec. 31, 2010 Nanjing Daqo [Member] USD ($) | Sep. 28, 2012 Nanjing Daqo [Member] | Dec. 31, 2012 Nanjing Daqo [Member] Daqo Group [Member] | Dec. 31, 2012 Nanjing Daqo [Member] Loan Extended [Member] USD ($) | Dec. 31, 2012 Nanjing Daqo [Member] Loan Extended [Member] CNY | Dec. 31, 2011 Nanjing Daqo [Member] Loan Extended [Member] USD ($) | Dec. 31, 2010 Nanjing Daqo [Member] Loan Extended [Member] USD ($) | Dec. 31, 2012 Daqo Xinjiang Investment Co., Ltd. [Member] USD ($) | Dec. 31, 2011 Daqo Xinjiang Investment Co., Ltd. [Member] USD ($) | Dec. 31, 2012 Daqo Xinjiang Investment Co., Ltd. [Member] Daqo Group [Member] | Dec. 31, 2012 Daqo Xinjiang Investment Co., Ltd. [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2011 Daqo Xinjiang Investment Co., Ltd. [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2010 Daqo Xinjiang Investment Co., Ltd. [Member] Prepayment Received [Member] USD ($) | Dec. 31, 2012 Other Subsidiaries of Daqo Group [Member] USD ($) | Dec. 31, 2011 Other Subsidiaries of Daqo Group [Member] USD ($) | Dec. 31, 2010 Other Subsidiaries of Daqo Group [Member] USD ($) | Dec. 31, 2012 Other Subsidiaries of Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2011 Other Subsidiaries of Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2010 Other Subsidiaries of Daqo Group [Member] Purchases of Fixed Assets [Member] USD ($) | Dec. 31, 2012 Other Subsidiaries of Daqo Group [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2011 Other Subsidiaries of Daqo Group [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2010 Other Subsidiaries of Daqo Group [Member] Purchases of Raw Materials [Member] USD ($) | Dec. 31, 2012 Other Subsidiaries of Daqo Group [Member] Rental Expenses [Member] USD ($) | Dec. 31, 2011 Other Subsidiaries of Daqo Group [Member] Rental Expenses [Member] USD ($) | Dec. 31, 2010 Other Subsidiaries of Daqo Group [Member] Rental Expenses [Member] USD ($) | Dec. 31, 2012 Other Subsidiaries of Daqo Group [Member] Service Expenses [Member] USD ($) | Dec. 31, 2011 Other Subsidiaries of Daqo Group [Member] Service Expenses [Member] USD ($) | Dec. 31, 2010 Other Subsidiaries of Daqo Group [Member] Service Expenses [Member] USD ($) | Dec. 31, 2012 Daqo New Material [Member] Daqo Group [Member]
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest held |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Sales | $ 2,799,427 | $ 7,387,590 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,971 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,799,428 | $ 6,958,317 |  |  | $ 2,179,723 | $ 619,705 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 80,126 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 427,302 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases |  |  |  |  |  |  | 8,052,089 | 38,376,931 | 13,931,985 |  |  |  | 5,282 | 3,614,689 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,849,533 | 15,787,658 |  |  |  |  |  |  |  |  |  | 3,314,115 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32,800,000 |  | 20,562,272 | 12,942,750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 202,556 | 2,027,001 | 989,235 | 5,282 | 300,574 |  |  |  |  |  |  |  |
Other transactions |  |  |  | 9,888,742 |  |  |  |  |  | 15,852,593 |  |  |  |  |  |  | 1,209,769 |  |  |  |  |  |  |  | 1,584,820 | 75,294,720 |  |  | 85,193,178 |  |  |  |  |  | 3,095,120 |  |  |  |  | 9,888,742 |  |  |  |  |  | 79,884,026 |  |  |  |  |  |  |  |  |  |  | 1,209,769 |  |  |  |  |  |  | 72,199,600 |  |  | 72,199,600 |  |  | 9,898,458 |  |  |  |  |  | 13,497,973 |  |  |  |  |  |  |  | 1,584,820 | 10,000,000 |  |  |  |  |  | 2,354,620 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% | 6.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment for purchase of fixed assets |  |  | 903,616 |  |  |  |  |  |  | 1,330,044 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,330,044 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest charged | 40,611 | 1,552,126 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,552,126 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,611 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 612,856 | 32,136 |  | 71,426 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 612,856 | 32,136 |  | 71,426 |  |
Related party balances: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount due from related party | 6,562,487 | 9,887,310 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,440,129 | 2,294,988 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,744 | 7,462,697 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 129,625 | 129,625 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in amount due from related parties | (8,418,601) | 7,390,878 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount due to related party | $ 23,708,363 | $ 3,159,356 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,359,008 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 13,497,972 | $ 1,552,126 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,645,923 |  |  |  |  |  |  |  |  | $ 2,354,620 |  |  |  |  |  | $ 850,840 | $ 1,607,230 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
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- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 07 -Paragraph b -Subparagraph 1 -Article 6 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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