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Financial Statement Schedule I (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Additional Information - Financial Statement Schedule I  
Restricted net assets of the entity's consolidated and unconsolidated subsidiaries not available for distribution $ 393,532,526us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Threshold percentage of restricted net assets of the entity's consolidated and unconsolidated subsidiaries 25.00%csiq_ThresholdPercentageOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries