Derivative Instruments - Schedule of Volume of Commodity-Related Derivative Contracts (Details) MWh in Thousands, MMBTU in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2023 MWh	Sep. 30, 2023 MMBTU	Dec. 31, 2022 MWh	Dec. 31, 2022 MMBTU
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	15,326	71,935	9,085	85,350
CLECO POWER
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	15,326	26,315	9,085	4,840

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