Summary of Significant Accounting Policies - Schedule of Changes in Allowance for Credit Losses, Other and Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
ACCOUNTS RECEIVABLE
Accounts receivable, beginning balance	$ 1,337	$ 3,012
Current period provision	(95)	142
Charge-offs	(662)	(1,662)
Recovery	265	330
Accounts receivable, ending balance	845	1,822
OTHER
Other, beginning balance	1,638	1,638
Current period provision	0	0
Charge-offs	0	0
Recovery	0	0
Other, ending balance	1,638	1,638
TOTAL
Total, beginning balance	2,975	4,650
Current period provision	(95)	142
Charge-offs	(662)	(1,662)
Recovery	265	330
Total, ending balance	2,483	3,460
CLECO POWER
ACCOUNTS RECEIVABLE
Accounts receivable, beginning balance	1,337	3,012
Current period provision	(95)	142
Charge-offs	(662)	(1,662)
Recovery	265	330
Accounts receivable, ending balance	$ 845	$ 1,822