Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Operating revenue	$ 1,147,708	$ 1,238,791	$ 1,604,480
Operating expenses
Total operating expenses	920,229	1,179,323	1,205,091
Operating income	227,479	59,468	399,389
Other income (expense), net	(13,021)	(694)	(11,240)
Income (loss) from continuing operations before income taxes	78,957	(94,942)	253,183
Federal and state income tax expense (benefit)	14,056	(65,073)	20,035
Income (loss) from continuing operations, net of income taxes	64,901	(29,869)	233,148
Income (loss) from discontinued operations, net of income taxes	45,517	14,642	(44,337)
Net income (loss)	110,418	(15,227)	188,811
Parent Company
Condensed Financial Statements, Captions [Line Items]
Operating revenue	8,158	0	0
Operating expenses
Administrative and general	3,049	1,206	1,088
Merger transaction costs	19	665	228
Other operating expense	6,642	268	246
Total operating expenses	9,710	2,139	1,562
Operating income	(1,552)	(2,139)	(1,562)
Equity income from continuing operations of subsidiaries, net of income taxes	115,123	25,232	276,039
Interest, net	(45,562)	(74,578)	(62,267)
Other income (expense), net	1,407	2,568	(724)
Income (loss) from continuing operations before income taxes	69,416	(48,917)	211,486
Federal and state income tax expense (benefit)	4,515	(19,048)	(21,662)
Income (loss) from continuing operations, net of income taxes	64,901	(29,869)	233,148
Income (loss) from discontinued operations, net of income taxes	45,517	14,642	(44,337)
Net income (loss)	$ 110,418	$ (15,227)	$ 188,811