Summary of Significant Accounting Policies - AFUDC and Capitalized Interest (Details)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Public Utilities, General Disclosures [Line Items]
AFUDC composite rate, pretax basis	9.06%	10.05%	10.14%
AFUDC composite rate, net of tax	7.09%	7.81%	7.96%
Capitalized interest rate, pretax basis	3.68%	1.80%	1.98%
CLECO POWER
Public Utilities, General Disclosures [Line Items]
AFUDC composite rate, pretax basis	9.06%	10.05%	10.14%
AFUDC composite rate, net of tax	7.09%	7.81%	7.96%

Disclosure of the effective rate, net of tax, for the period representing (a) total additions to qualifying regulated assets for allowance for funds used during construction, (b) divided by the sum of debt and equity funds used for construction.

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- Definition

Public Utilities, Capitalized Interest On Allowance For Funds Used During Construction, Rate

+ References

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- Definition

Effective rate, including composite rate, of cost of financing additions to qualifying regulated assets, commonly called allowance for funds used during construction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 835
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 835
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6501569&loc=d3e55921-110430

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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.

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