Threshold period for when financing receivable is considered past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-14

Name:	us-gaap_FinancingReceivableThresholdPeriodPastDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	Sep. 20, 2023	Sep. 30, 2023
Restricted Cash and Cash Equivalents Items [Line Items]
Receivable, threshold period past due		20 days
CLECO POWER \| Cleco Power’s storm restoration costs - Hurricane Ida
Restricted Cash and Cash Equivalents Items [Line Items]
Increase (decrease) in restricted cash and cash equivalents	$ (10.3)