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Income Taxes, Income Tax Uncertainties (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Uncertain Tax Positions [Abstract]          
Interest payable associated with uncertain tax positions $ 1,131,000   $ 1,131,000   $ 1,420,000
Interest charges related to uncertain tax positions (221,000) (2,716,000) (290,000) (8,355,000)  
Cleco Power [Member]
         
Uncertain Tax Positions [Abstract]          
Interest payable associated with uncertain tax positions 3,600,000   3,600,000   3,358,000
Amounts expected to be recovered from customers under existing rate orders 7,700,000   7,700,000   6,200,000
Interest charges related to uncertain tax positions $ 121,000 $ (2,271,000) $ 242,000 $ (9,636,000)