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INCOME TAXES (Narrative) (Details) $ in Thousands, ¥ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2021 HKD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax paid | $ 108,099 |  |  | $ 12,808 | $ 5,546
Valuation allowance | 816 |  |  | 709 | $ 729
Deferred tax liabilities | $ 16,726 |  |  | $ 3,461 |
Percentage of distributable profit recorded as deferred tax liability | 20.18% | 20.18% | 20.18% |  |
Statutory enterprise income tax rate | 25.00% | 25.00% | 25.00% | 25.00% | 25.00%
Income (loss) before income taxes | $ 1,034,948 |  |  | $ 162,130 | $ 37,885
State Administration of Taxation, China |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Statutory enterprise income tax rate | 25.00% | 25.00% | 25.00% |  |
Income (loss) before income taxes | $ 1,046,200 |  |  | 179,600 | 49,800
PRC State Council, income tax rate | 10.00% | 10.00% | 10.00% |  |
HONG KONG |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Amount of profit for which rate of tax changes |  | $ 2 |  |  |
Minimum income tax rate | 8.25% | 8.25% | 8.25% |  |
Maximum income tax rate | 16.50% | 16.50% | 16.50% |  |
Outside PRC [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Statutory enterprise income tax rate | 25.00% | 25.00% | 25.00% |  |
Income (loss) before income taxes | $ 11,300 |  |  | $ 17,500 | 12,000
Xinjiang Daqo [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax paid | ¥ |  |  | ¥ 0.1 |  |
Deferred tax liabilities | $ 14,500 |  |  |  |
Percentage of distributable profit recorded as deferred tax liability | 20.18% | 20.18% | 20.18% |  |
Preferential tax rate | 15.00% | 15.00% | 15.00% | 15.00% |
Minimum dividend distribution (in percent) | 30.00% |  |  |  |
Chongqing Daqo New Energy Co., Ltd. [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Valuation allowance | $ 20,500 |  |  | $ 24,300 | $ 23,300

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