Affiliate Transactions - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Affiliate
Affiliate Transaction [Line Items]
Accounts receivable - affiliate	$ 24,216,000	$ 14,613,000
Accounts payable	10,683,000	13,092,000
Affiliate \| CLECO POWER
Affiliate Transaction [Line Items]
Accounts receivable - affiliate	4,543,000	3,771,000
Accounts payable	13,200,000	12,448,000
Cleco Holdings
Affiliate Transaction [Line Items]
Distributions to member	53,500,000	219,600,000	$ 0
Contributions from member	0	0	0
Cleco Holdings \| CLECO POWER
Affiliate Transaction [Line Items]
Distributions to member	94,800,000	105,500,000	0
Contributions from member	$ 0	$ 0	$ 0

Cash Contributions Received from Limited Liability Company (LLC) Member

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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-Name Accounting Standards Codification
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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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- Definition

Amount of cash distribution paid to unit-holder of limited liability company (LLC).

+ References

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-Topic 505
-SubTopic 10
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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