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Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Discontinued Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 01, 2024
Dec. 31, 2024
Operating revenue, net    
Professional fees   $ 10.8
Discontinued Operations, Held-for-sale | Cleco Cajun    
Operating revenue, net    
Sale purchase price due at closing $ 474.5  
Professional fees 10.8  
Disposal group including discontinued operation consideration payable at after closing date $ 113.0