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v2.4.1.9

INCOME TAXES (Details 5) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Reconciliation between the provision for income tax computed by applying Canadian federal and provincial statutory tax rates to income before income taxes and the actual provision and benefit for income taxes |  |  |
Combined federal and provincial income tax rate (as a percent) | 27.00%csiq_EffectiveIncomeTaxRateReconciliationAtFederalAndProvincialIncomeTaxRate | 27.00%csiq_EffectiveIncomeTaxRateReconciliationAtFederalAndProvincialIncomeTaxRate | 27.00%csiq_EffectiveIncomeTaxRateReconciliationAtFederalAndProvincialIncomeTaxRate
Expenses not deductible for tax purpose (as a percent) |  |  | (1.00%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
Effect of different tax rate of subsidiary operations in other jurisdiction (as a percent) | (2.00%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | 1.00%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | (7.00%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
Unrecognized tax benefits (as a percent) |  | 5.00%us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies | (1.00%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies
Valuation allowance (as a percent) | (1.00%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 5.00%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (14.00%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Change of tax rates in subsequent years (as a percent) |  | (23.00%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate |
Exchange gain (loss) (as a percent) |  |  | (1.00%)csiq_EffectiveIncomeTaxRateReconciliationForeignExchangeGainLoss
Actual income tax rate (as a percent) | 24.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 15.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 3.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Additional disclosure |  |  |
Withholding income tax rate on dividends distributed by foreign invested enterprises (as a percent) | 10.00%csiq_WithholdingTaxRateOnDividendDistributedByForeignInvestmentEntities |  |
Undistributed earnings of subsidiaries and affiliates considered to be permanently reinvested | $ 155,600,000 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |
Provision for withholding income tax on dividend | 0 csiq_ProvisionForWithholdingTaxOnDividendDistributedByForeignInvestmentEntities |  |
Preferential withholding tax rate (as a percent) | 5.00%csiq_PreferentialWithholdingTaxRate |  |
Minimum |  |  |
Additional disclosure |  |  |
Unrecognized deferred tax liabilities | 7,700,000 us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Withholding tax rate (as a percent) | 5.00%csiq_WithholdingTaxRate / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Maximum |  |  |
Additional disclosure |  |  |
Unrecognized deferred tax liabilities | $ 15,300,000 us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Withholding tax rate (as a percent) | 10.00%csiq_WithholdingTaxRate / us-gaap_RangeAxis = us-gaap_MaximumMember |  |

X
- Definition The domestic federal statutory tax rate and provincial corporate income tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems. + References No definition available. + Details
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to foreign exchange gain (loss). + References No definition available. + Details
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- Definition Represents the preferential withholding tax rate. + References No definition available. + Details
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- Definition Represents the amount of provision for withholding tax on dividends distributed by foreign investment entities. + References No definition available. + Details
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- Definition Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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