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SUBSEQUENT EVENTS (Details) (Subsequent event, Recurrent Energy, LLC, USD $)
1 Months Ended
Mar. 31, 2015
SUBSEQUENT EVENTS  
Ownership Percentage 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
Forecast
 
SUBSEQUENT EVENTS  
Consideration $ 265,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= csiq_RecurrentEnergyLLCMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember