Derivative Instruments - Commodity Derivative Contracts (Details) MWh in Thousands, MMBTU in Thousands	12 Months Ended
Dec. 31, 2023 MWh	Dec. 31, 2023 MMBTU	Dec. 31, 2022 MWh	Dec. 31, 2022 MMBTU
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	9,611	61,119	9,085	85,350
Cleco Power
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	9,611	19,915	9,085	4,840

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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