Cleco Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 195,210	$ 110,418	$ (15,227)
Other comprehensive income, net of tax
Postretirement benefits (loss) gain (net of tax benefit of $2,308 in 2025, tax expense of $973 in 2024, and tax benefit of $1,905 in 2023)	(6,798)	2,428	(5,171)
Total other comprehensive (loss) income, net of tax	(6,798)	2,428	(5,171)
Comprehensive income (loss), net of tax	$ 188,412	$ 112,846	$ (20,398)