XML 79 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Litigation, Other Commitments and Contingencies, and Disclosures about Guarantees, On-Balance Sheet Guarantees (Details) (Cleco Power [Member], Lignite Mining Agreement Guarantee [Member], Financial Guarantee [Member], USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Cleco Power [Member] | Lignite Mining Agreement Guarantee [Member] | Financial Guarantee [Member]
  
Disclosures about Guarantees [Abstract]  
Guarantor Obligations, Maximum Exposure, Undiscounted $ 69.3us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_FinancialGuaranteeMember
/ cnl_GuarantorObligationsTransactionOriginAxis
= cnl_LigniteMiningAgreementGuaranteeMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Guarantor Obligations, Current Carrying Value $ 3.8us-gaap_GuaranteeObligationsCurrentCarryingValue
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_FinancialGuaranteeMember
/ cnl_GuarantorObligationsTransactionOriginAxis
= cnl_LigniteMiningAgreementGuaranteeMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember