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Income Taxes, Effective Tax Rate Reconciliation (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Effective Income Tax Rate [Line Items]
Effective Rate (in hundredths)	24.00%	27.30%	27.80%	30.80%
Cleco Power [Member]
Effective Income Tax Rate [Line Items]
Effective Rate (in hundredths)	25.50%	37.00%	31.00%	34.10%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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