Cleco Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (57,231)	$ (104,022)
Other comprehensive loss, net of income tax
Postretirement benefits (loss) gain, net of tax (benefit) expense	(299)	(422)
Other comprehensive income, net of tax	(299)	(422)
Comprehensive loss, net of tax	$ (57,530)	$ (104,444)