Cleco Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024
Statement of Cash Flows [Abstract]
Professional fees	$ 10,800
Cash and cash equivalents		$ 71,814	$ 30,472
Restricted cash and cash equivalents, current		30,368	15,918
Restricted cash and cash equivalents, noncurrent		$ 139,848	$ 116,493