Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 122,576	$ 54,541
Other accounts receivable	30,518	38,332
Cash surrender value of company-owned life insurance policies	56,922	52,859
Other current assets	918	838
Total current assets	790,667	783,867
Equity investment in subsidiaries	1,992	2,072	$ 2,072
Other deferred charges	24,484	28,169
Total assets	8,100,393	8,253,749	8,125,018
Current liabilities
Long-term debt due within one year	66,497	230,524
Short-term debt	110,000	109,000
Taxes payable	19,963	17,448
Interest accrued	22,209	25,540
Deferred compensation	14,277	12,162
Other current liabilities	24,378	20,248
Total current liabilities	808,136	872,697
Postretirement benefit obligations	196,321	200,580
Other deferred credits	34,186	25,113
Total liabilities	5,227,220	5,306,682
Commitments and contingencies (Note 5)
Member’s equity
Member’s equity	2,873,173	2,947,067	$ 2,954,156	$ 2,757,023
Total liabilities and member’s equity	8,100,393	8,253,749
Affiliate
Current assets
Accounts receivable - affiliate	24,216	14,613
Current liabilities
Accounts payable	10,683	13,092
Parent Company
Current assets
Cash and cash equivalents	5,153	2,556
Other accounts receivable	2,441	1,781
Taxes receivable, net	44,025	13,242
Cash surrender value of company-owned life insurance policies	47,129	43,388
Other current assets	66	65
Total current assets	137,178	92,274
Equity investment in subsidiaries	4,180,082	4,292,018
Accumulated deferred federal and state income taxes, net	123,950	145,513
Other deferred charges	570	788
Total assets	4,441,780	4,530,593
Current liabilities
Long-term debt due within one year	66,497	230,523
Accounts payable	842	1,900
Short-term debt	110,000	64,000
Taxes payable	6	33
Interest accrued	10,458	10,264
Deferred compensation	14,277	12,162
Other current liabilities	255	749
Total current liabilities	222,270	337,127
Postretirement benefit obligations	2,851	2,774
Other deferred credits	313	313
Long-term debt, net	1,343,173	1,243,312
Total liabilities	1,568,607	1,583,526
Commitments and contingencies (Note 5)
Member’s equity
Member’s equity	2,873,173	2,947,067
Total liabilities and member’s equity	4,441,780	4,530,593
Parent Company | Affiliate
Current assets
Accounts receivable - affiliate	38,364	31,242
Current liabilities
Accounts payable	$ 19,935	$ 17,496