Derivative Instruments - Derivative Instruments as Recorded in Consolidated Balance Sheets (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Price Risk Derivatives, at Fair Value, Net [Abstract]
Commodity-related contracts, net	$ (8,439)	$ (2,294)
CLECO POWER
Price Risk Derivatives, at Fair Value, Net [Abstract]
Commodity-related contracts, net	(8,439)	(2,294)
Price Risk Derivative [Member] | Energy risk management assets, current
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative asset	837	2,570
Price Risk Derivative [Member] | Energy risk management assets, current | CLECO POWER
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative asset	837	2,570
Price Risk Derivative [Member] | Energy risk management liabilities, current
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative liability	(204)	(294)
Price Risk Derivative [Member] | Energy risk management liabilities, current | CLECO POWER
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative liability	(204)	(294)
Natural Gas Derivatives [Member] | Energy risk management assets, current
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative asset	223	0
Natural Gas Derivatives [Member] | Energy risk management assets, current | CLECO POWER
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative asset	223	0
Natural Gas Derivatives [Member] | Energy risk management liabilities, current
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative liability	(9,295)	(4,570)
Natural Gas Derivatives [Member] | Energy risk management liabilities, current | CLECO POWER
Price Risk Derivatives, at Fair Value, Net [Abstract]
Derivative liability	$ (9,295)	$ (4,570)