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Variable Interest Entities - Narrative (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Variable Interest Entity [Line Items]      
Equity investment in investee $ 1,916 $ 1,916 $ 1,916
CLECO POWER      
Variable Interest Entity [Line Items]      
Equity investment in investee $ 1,916 $ 1,916  
CLECO POWER | VIE, Not Primary Beneficiary - Oxbow      
Variable Interest Entity [Line Items]      
Ownership percentage by Cleco Power 50.00%    
SWEPCO | VIE, Not Primary Beneficiary - Oxbow      
Variable Interest Entity [Line Items]      
Ownership percentage by other parties 50.00%