Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net cash provided by operating activities	$ 296,805	$ 421,192	$ 344,912
Investing activities
Proceeds from sale of discontinued operations (net of transaction fees of $10.8 million)	463,769	0	0
Return on investment in trust-owned life insurance policies	0	417	41,671
Net cash provided by (used in) investing activities	217,239	(227,816)	(193,257)
Financing activities
Distributions to member	(145,005)	(53,496)	(219,588)
Other financing	(1,017)	(836)	(755)
Net cash used in financing activities	(607,228)	(128,881)	(111,065)
Net (decrease) increase in cash, cash equivalents, restricted cash, and restricted cash equivalents	(93,184)	64,495	40,590
Supplementary cash flow information
Interest paid, net of amount capitalized	155,670	170,680	131,760
Income taxes paid, net	9,138	2,162	0
Professional fees	10,800
Parent Company
Operating activities
Net cash provided by operating activities	189,344	75,548	180,270
Investing activities
Proceeds from sale of discontinued operations (net of transaction fees of $10.8 million)	463,769	0	0
Return on investment in trust-owned life insurance policies	0	417	35,175
Net cash provided by (used in) investing activities	463,769	417	35,175
Financing activities
Draws on revolving credit facilities	32,000	100,000	64,000
Payments on revolving credit facilities	(132,000)	(54,000)	0
Repayments of long-term debt	(406,700)	(65,600)	(67,700)
Distributions to member	(145,005)	(53,496)	(219,588)
Other financing	197	(272)	(9)
Net cash used in financing activities	(651,508)	(73,368)	(223,297)
Net (decrease) increase in cash, cash equivalents, restricted cash, and restricted cash equivalents	1,605	2,597	(7,852)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	5,153	2,556	10,408
Cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	6,758	5,153	2,556
Supplementary cash flow information
Interest paid, net of amount capitalized	58,970	72,537	59,848
Income taxes paid, net	9,138	$ 2,162	$ 0
Professional fees	$ 10,800