Affiliate Transactions - Summary of Balances Payable To or Due From Affiliates (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
ACCOUNTS RECEIVABLE	$ 13,111	$ 3,041
ACCOUNTS PAYABLE	13,092	51,297
CLECO POWER
Related Party Transaction [Line Items]
ACCOUNTS RECEIVABLE	2,486	13,612
ACCOUNTS PAYABLE	10,837	69,729
CLECO POWER | Cleco Holdings
Related Party Transaction [Line Items]
ACCOUNTS RECEIVABLE	8	10,347
ACCOUNTS PAYABLE	1,029	59,627
CLECO POWER | Support Group
Related Party Transaction [Line Items]
ACCOUNTS RECEIVABLE	1,255	2,473
ACCOUNTS PAYABLE	9,806	10,038
CLECO POWER | Cleco Cajun
Related Party Transaction [Line Items]
ACCOUNTS RECEIVABLE	1,223	792
ACCOUNTS PAYABLE	$ 2	$ 64