Derivative Instruments - Schedule of Volume of Commodity-Related Derivative Contracts (Details) MWh in Thousands, MMBTU in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024 MWh	Mar. 31, 2024 MMBTU	Dec. 31, 2023 MWh	Dec. 31, 2023 MMBTU
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	2,686	48,490	9,611	61,119
CLECO POWER
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Volume outstanding (MWh / MMBtu)	2,686	23,990	9,611	19,915

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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