Name:	cnl_AccruedInterestOnTransferredBondsEliminated
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Accrued interest on remaining Senior Secured bonds that the entity's subsidiary paid to debtholders, upon issuing an irrevocable redemption notice under the terms of the Evangeline Restructuring Agreement.

No definition available.

Name:	cnl_AccruedInterestPaidToDebtholders
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	cnl_BondsTransferredAbstract
Namespace Prefix:	cnl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The letter of credit issued under the Evangeline Tolling Agreement that was returned to the entity that was subsequently cancelled.

No definition available.

Name:	cnl_CancellationOfLetterOfCredit
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Face amount of remaining Senior Secured bonds that the entity's subsidiary issued an irrevocable redemption notice to redeem, under the terms of the Evangeline Restructuring Agreement.

No definition available.

Name:	cnl_FaceAmountOfRemainingSeniorSecuredBonds
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of capacity and energy provided by a long-term power purchase agreement.

No definition available.

Name:	cnl_LongTermPowerPurchaseAgreementCapacityAndEnergyProvidedDuringTermOfAgreement
Namespace Prefix:	cnl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The amount of make-whole payment the entity's subsidiary made to debtholders upon issuing an irrevocable redemption notice under the terms of the Evangeline Restructuring Agreement.

No definition available.

Name:	cnl_MakeWholePaymentOnBondRedemption
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount that JPMVEC paid to Evangeline upon termination of the existing operating lease.

No definition available.

Name:	cnl_PaymentFromTerminationOfOperatingLease
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	cnl_RedemptionOfRemainingBondsAbstract
Namespace Prefix:	cnl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of restricted cash released upon redemption of the bonds.

No definition available.

Name:	cnl_RestrictedCashReleasedUponRedemptionOfBonds
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Senior Secured bonds transferred to the entity's subsidiary, which was subsequently retired as per the Evangeline Restructuring Agreement.

No definition available.

Name:	cnl_SeniorSecuredBondsTransferredAndRetired
Namespace Prefix:	cnl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The stated interest rate of bonds transferred and retired.

No definition available.

Name:	cnl_StatedInterestRateOfBondsTransferredAndRetired
Namespace Prefix:	cnl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682