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BORROWINGS (Details 4) | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  | 12 Months Ended |  | 12 Months Ended | 0 Months Ended |  |  | 12 Months Ended |  |  | 12 Months Ended |  | 0 Months Ended |  | 12 Months Ended |  |  |  |  | 12 Months Ended |  |  | 12 Months Ended |  |  |  | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2014 Credit facility USD ($) | Dec. 31, 2014 Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility USD ($) | May 20, 2013 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility Minimum | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility Repayment due in 2017 USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power project Credit facility Repayment due in 2018 USD ($) | Dec. 31, 2014 CSI Solar Manufacture Inc. and Tumushuke CSI New Energy Development Co., Ltd Local Chinese commercial banks Loan agreement for construction of solar power projects Credit facility Repayment Due In 2019 And Thereafter USD ($) | May 20, 2013 Tumushuke CSI New Energy Development Co., Ltd. | Dec. 31, 2014 SZCC, or CSI Cells Local Chinese commercial banks Loan agreement entered on October 29, 2011 Credit facility USD ($) | Oct. 29, 2011 SZCC, or CSI Cells Local Chinese commercial banks Loan agreement entered on October 29, 2011 Credit facility USD ($) | Dec. 31, 2014 SZCC, or CSI Cells Local Chinese commercial banks Loan agreement entered on October 29, 2011 Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 SZCC, or CSI Cells Local Chinese commercial banks Loan agreement entered on October 29, 2011 Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2014 SZCC, or CSI Cells Local Chinese commercial banks Loan agreement entered on October 29, 2011 Credit facility Repayment due in 2017 USD ($) | Oct. 28, 2013 SZCC, or CSI Cells State-owned trust company Loan agreement for research of Solar Photovoltaic Technology Credit facility USD ($) | Dec. 31, 2014 SZCC, or CSI Cells State-owned trust company Loan agreement for research of Solar Photovoltaic Technology Credit facility Repayment due in 2016 USD ($) | Jun. 26, 2012 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on June 26, 2012 Credit facility | Dec. 31, 2014 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on June 26, 2012 Credit facility USD ($) | Jun. 26, 2012 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on June 26, 2012 Credit facility USD ($) | Dec. 31, 2014 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on June 26, 2012 Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 Credit facility USD ($) | Feb. 28, 2013 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 Credit facility USD ($) | Dec. 31, 2014 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 Credit facility Repayment due in 2016 USD ($) | Feb. 28, 2013 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 First tranche | Feb. 28, 2013 Canadian Solar Japan K.K. Japanese bank Loan agreement for working capital entered on February 28, 2013 Second tranche Repayment in each month USD ($) | Dec. 31, 2014 HKSI Chinese Commercial Banks Loan agreement for working capital entered on November 25, 2013 Credit facility USD ($) | Dec. 31, 2014 HKSI Chinese Commercial Banks Loan agreement for working capital entered on November 25, 2013 Credit facility London Interbank Offered Rate (LIBOR) [Member] | Dec. 31, 2014 HKSI Chinese Commercial Banks Loan agreement for working capital entered on November 25, 2013 Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 HKSI Chinese Commercial Banks Loan agreement for working capital entered on November 25, 2013 Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2013 Canadian Solar International Project 1 Limited | Dec. 31, 2014 Canadian Solar International Project 1 Limited Harvest North Star Capital Loan agreement for financing the development of several ground-mounted solar power projects in Japan Credit facility USD ($) | Dec. 31, 2013 Canadian Solar International Project 1 Limited Harvest North Star Capital Loan agreement for financing the development of several ground-mounted solar power projects in Japan Credit facility | Dec. 04, 2013 Canadian Solar International Project 1 Limited Harvest North Star Capital Loan agreement for financing the development of several ground-mounted solar power projects in Japan Credit facility USD ($) | Dec. 31, 2014 Canadian Solar International Project 1 Limited Harvest North Star Capital Loan agreement for financing the development of several ground-mounted solar power projects in Japan Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 Canadian Solar International Project 1 Limited Harvest North Star Capital Loan agreement for financing the development of several ground-mounted solar power projects in Japan Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility USD ($) | Aug. 28, 2013 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Minimum CNY | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2017 USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2018 USD ($) | Dec. 31, 2014 SZSP China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due thereafter USD ($) | Nov. 14, 2013 CSI Photovoltaic Energy (Sihong) Inc. | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility USD ($) | Nov. 14, 2013 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility USD ($) | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2015 USD ($) | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2016 USD ($) | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2017 USD ($) | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due in 2018 USD ($) | Dec. 31, 2014 CSI Photovoltaic Energy (Sihong) Inc. China Development Bank, Suzhou Branch Loan agreement for construction of solar power projects Credit facility Repayment due thereafter USD ($) | Jun. 25, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility item | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility USD ($) | Jun. 25, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility Repayment due in 2017 USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility Repayment due in 2018 USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Credit facility Repayment Due In 2019 And Thereafter USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines First tranche USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines First tranche Repayment due in 2017 USD ($) | Dec. 31, 2014 CSI-GCL (Yancheng) Solar Manufacturing Co., Ltd. Jiangsu Haixin Energy Development Co. Loan agreement for construction of solar power projects and production lines Second tranche Repayment due in 2017 USD ($) | Feb. 25, 2014 Glenarm LP,2172839 Ontario Corp | Dec. 31, 2014 Glenarm LP,2172839 Ontario Corp Netixis Bank Loan agreement for construction of solar power projects Credit facility USD ($) | Feb. 25, 2014 Glenarm LP,2172839 Ontario Corp Netixis Bank Loan agreement for construction of solar power projects Credit facility USD ($) | Dec. 31, 2014 Glenarm LP,2172839 Ontario Corp Netixis Bank Loan agreement for construction of solar power projects Credit facility Repayment due in 2015 USD ($)
BORROWINGS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = csiq_TumushukeCSINewEnergyDevelopmentCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = csiq_GlenarmLp2172839OntarioCorpMember |  |  |
Maximum borrowing capacity |  |  |  | $ 760,604,494 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember |  |  | $ 36,035,300 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember |  |  |  |  |  |  |  |  | $ 73,165,550 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredOn29October2011Member |  |  |  | $ 1,143,978 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_StateOwnedTrustCompanyMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForResearchOfSolarPhotovoltaicTechnologyMember |  |  |  | $ 267,191 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn26June2012ForWorkingCapitalMember |  |  | $ 435,855 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember |  |  |  |  |  |  |  |  |  |  |  | $ 40,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember / us-gaap_LineOfCreditFacilityAxis = csiq_HarvestNorthStarCapitalMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForFinancingDevelopmentOfSeveralGroundMountedSolarPowerProjectsMember |  |  |  | $ 7,517,568 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  | $ 5,229,613 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  | $ 44,124,857 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  |  | $ 24,513,809 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = csiq_FirstTrancheLineOfCreditMember / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  | $ 19,611,048 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = csiq_SecondTrancheLineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  | $ 585,630 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_GlenarmLp2172839OntarioCorpMember / us-gaap_LineOfCreditFacilityAxis = csiq_NetixisBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |
Repayment of credit facility |  |  |  |  |  |  |  |  | 3,186,795 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember | 3,105,083 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember | 3,105,083 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember | 3,268,508 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2018Member / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember | 23,369,831 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2019AndThereafterMember / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  | 11,524,759 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredOn29October2011Member | 25,229,613 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredOn29October2011Member | 24,886,419 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredOn29October2011Member |  | 1,148,124 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_StateOwnedTrustCompanyMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForResearchOfSolarPhotovoltaicTechnologyMember |  |  |  | 267,191 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn26June2012ForWorkingCapitalMember |  |  | 389,765 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember | 46,090 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember |  | 32,480 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = csiq_SecondTrancheLineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueInEachMonthMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember |  |  | 19,400,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CanadianSolarInternationalLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn25November2013ForWorkingCapitalMember | 9,700,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CanadianSolarInternationalLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn25November2013ForWorkingCapitalMember |  |  |  |  | 17,676,744 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember / us-gaap_LineOfCreditFacilityAxis = csiq_HarvestNorthStarCapitalMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForFinancingDevelopmentOfSeveralGroundMountedSolarPowerProjectsMember | 16,658,271 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember / us-gaap_LineOfCreditFacilityAxis = csiq_HarvestNorthStarCapitalMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForFinancingDevelopmentOfSeveralGroundMountedSolarPowerProjectsMember |  |  |  | 1,143,978 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 1,143,978 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 1,143,978 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 1,143,978 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2018Member / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 2,941,656 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueThereafterMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  | 702,729 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 751,757 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2016Member / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 751,757 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 784,442 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2018Member / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember | 2,238,928 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueThereafterMember / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  | 6,201,647 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember | 2,228,175 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2018Member / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember | 4,456,349 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2019AndThereafterMember / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  |  |  |  |  | 585,630 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member / dei_LegalEntityAxis = csiq_GlenarmLp2172839OntarioCorpMember / us-gaap_LineOfCreditFacilityAxis = csiq_NetixisBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember
Outstanding balance of credit facility |  |  |  |  | 521,811,874 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2015Member | 36,035,300 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember |  |  |  |  |  |  |  |  | 61,640,791 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSICellsCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredOn29October2011Member |  |  |  |  |  |  |  | 267,191 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn26June2012ForWorkingCapitalMember |  |  | 435,855 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember |  |  |  |  |  | 29,100,000 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarInternationalLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn25November2013ForWorkingCapitalMember |  |  |  |  | 34,335,015 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember / us-gaap_LineOfCreditFacilityAxis = csiq_HarvestNorthStarCapitalMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForFinancingDevelopmentOfSeveralGroundMountedSolarPowerProjectsMember |  |  |  |  | 7,517,568 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  | 5,229,613 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  | 12,886,171 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  |  |  |  |  |  |  | 585,630 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_GlenarmLp2172839OntarioCorpMember / us-gaap_LineOfCreditFacilityAxis = csiq_NetixisBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |
Floating rate of borrowing (as a percent) |  |  |  |  |  | 6.55%csiq_LineOfCreditFacilityFloatingRateAsPercentageOfBaseInterestRate / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of tranches |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 csiq_NumberOfTranches / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  |  |  |  |  |  |  |  |  |  |
Repayment period of credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
Maximum liabilities to assets ratio |  |  |  |  |  | 75.00%csiq_DebtInstrumentCovenantMaximumLiabilitiesToAssetsRatio / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarManufactureIncAndTumushukeCSINewEnergyDevelopmentCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_LocalChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.00%csiq_DebtInstrumentCovenantMaximumLiabilitiesToAssetsRatio / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  | 75.00%csiq_DebtInstrumentCovenantMaximumLiabilitiesToAssetsRatio / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity term of credit facility |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  | 36 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.90%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn26June2012ForWorkingCapitalMember |  |  |  |  |  | 1.45%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = csiq_FirstTrancheLineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarJapanKKMember / us-gaap_LineOfCreditFacilityAxis = csiq_JapaneseBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn28February2013ForWorkingCapitalMember |  |  |  |  |  |  |  | 12.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarInternationalProjectOneLimitedMember / us-gaap_LineOfCreditFacilityAxis = csiq_HarvestNorthStarCapitalMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForFinancingDevelopmentOfSeveralGroundMountedSolarPowerProjectsMember |  |  |  | 6.55%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  | 6.878%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSIPhotovoltaicEnergySihongIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_GlenarmLp2172839OntarioCorpMember / us-gaap_LineOfCreditFacilityAxis = csiq_NetixisBankMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |
Basis of interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reference rate to compute the variable rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.80%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CanadianSolarInternationalLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChineseCommercialBanksMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementEnteredIntoOn25November2013ForWorkingCapitalMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required consolidated revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,000,000 csiq_DebtInstrumentCovenantConsolidatedRevenues / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / dei_LegalEntityAxis = csiq_CSISolarPowerChinaIncMember / us-gaap_LineOfCreditFacilityAxis = csiq_ChinaDevelopmentBankSuzhouBranchMember / us-gaap_RangeAxis = us-gaap_MinimumMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Draw downs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,684,524 us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = csiq_FirstTrancheLineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember | 6,201,647 us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = csiq_SecondTrancheLineOfCreditMember / csiq_DebtInstrumentRepaymentPeriodAxis = csiq_RepaymentDueIn2017Member / dei_LegalEntityAxis = csiq_CSIGCLYanchengSolarManufacturingCoLtdMember / us-gaap_LineOfCreditFacilityAxis = csiq_JiangsuHaixinEnergyDevelopmentCoMember / csiq_TypeOfAgreementAxis = csiq_LoanAgreementForConstructionOfSolarPowerProjectsAndProductionLinesMember |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest capitalized - project assets | 10,304,555 csiq_InterestCostsCapitalizedProjectAssets | 17,292,847 csiq_InterestCostsCapitalizedProjectAssets | 4,631,569 csiq_InterestCostsCapitalizedProjectAssets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest capitalized - property, plant, and equipment | 203,067 csiq_InterestCostsCapitalizedPropertyPlantAndEquipment | 347,791 csiq_InterestCostsCapitalizedPropertyPlantAndEquipment | 670,374 csiq_InterestCostsCapitalizedPropertyPlantAndEquipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense | 48,905,848 us-gaap_InterestExpense | 46,244,456 us-gaap_InterestExpense | 53,304,640 us-gaap_InterestExpense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total interest incurred | $ 59,413,470 us-gaap_InterestCostsIncurred | $ 63,885,094 us-gaap_InterestCostsIncurred | $ 58,606,583 us-gaap_InterestCostsIncurred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Represents the debt instrument covenant for consolidated revenue. + References No definition available. + Details
Name: | csiq_DebtInstrumentCovenantConsolidatedRevenues
Namespace Prefix: | csiq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the maximum liabilities to assets ratio under the debt instrument covenants. + References No definition available. + Details
Name: | csiq_DebtInstrumentCovenantMaximumLiabilitiesToAssetsRatio
Namespace Prefix: | csiq_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of interest capitalized on project assets during the period. + References No definition available. + Details
Name: | csiq_InterestCostsCapitalizedProjectAssets
Namespace Prefix: | csiq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest capitalized on property, plant, and equipment during the period. + References No definition available. + Details
Name: | csiq_InterestCostsCapitalizedPropertyPlantAndEquipment
Namespace Prefix: | csiq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the floating rate of borrowing, as a percentage of base interest rate. + References No definition available. + Details
Name: | csiq_LineOfCreditFacilityFloatingRateAsPercentageOfBaseInterestRate
Namespace Prefix: | csiq_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maturity period of credit facility. + References No definition available. + Details
Name: | csiq_LineOfCreditFacilityMaturityTerm
Namespace Prefix: | csiq_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the repayment period of the first tranche of credit facility. + References No definition available. + Details
Name: | csiq_LineOfCreditFacilityRepaymentPeriod
Namespace Prefix: | csiq_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of tranches. + References No definition available. + Details
Name: | csiq_NumberOfTranches
Namespace Prefix: | csiq_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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- Definition Total interest costs incurred during the period and either capitalized or charged against earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: 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.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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