Amount to be collected annually from a regional transmission organization for system support resource payments.

No definition available.

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- Definition

One-time contribution paid to the LED

+ References

No definition available.

+ Details

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- Definition

Payments received for capital expenditures subject to refund

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Proposed Return on Equity, Percentage

+ References

No definition available.

+ Details

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- Definition

The percentage of retail earnings to be returned to retail customers as ordered by the regulatory agency when the return on equity falls within a certain range.

+ References

No definition available.

+ Details

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- Definition

The high range of the return on equity which triggers a retail customer partial refund obligation. All retail earnings must be returned to customers when the return on equity exceeds this high range.

+ References

No definition available.

+ Details

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- Definition

The low range of the return on equity which triggers a retail customer partial refund obligation.

+ References

No definition available.

+ Details

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- Definition

Rate Credits issued to customers

+ References

No definition available.

+ Details

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- Definition

For transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination, such as related to pre-existing relationships with the acquiree, this element represents the disclosure of the amount of acquisition related costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

+ References

No definition available.

+ Details

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- Definition

Amount of cash outflow to customers for refund payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 13.A.4(a))
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

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- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

+ Details

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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

No definition available.

+ Details

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Regulation and Rates (Details) - USD ($)		1 Months Ended				6 Months Ended	39 Months Ended
Regulation and Rates (Details) - USD ($)	Feb. 13, 2017	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2016	Nov. 30, 2013	Dec. 31, 2016	Sep. 30, 2017	Dec. 31, 2017	Oct. 31, 2017	Jun. 28, 2017	Oct. 31, 2016	Apr. 07, 2016
Public Utilities, General Disclosures [Line Items]
Provision for rate refund						$ 3,974,000		$ 4,206,000
Merger Commitments, rate credits [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												$ 136,000,000
Merger Commitments, economic development contribution, disbursed over 5 years [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												2,500,000
Merger Commitments, economic development contribution [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												7,000,000
Merger Commitments, charitable contribution, disbursed over 5 years [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												6,000,000
Merger Commitments, cost savings [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												1,200,000
Cleco Power [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund						3,974,000		4,206,000
Payments received for capital expenditures subject to refund								3,300,000
Cleco Power [Member] \| Federal Energy Regulatory Commission [Member] \| Transmission return on equity [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund								2,100,000
Cleco Power [Member] \| Federal Energy Regulatory Commission [Member] \| MISO Transmission Rates [Member]
Public Utilities, General Disclosures [Line Items]
Return on equity established by FERC (in hundredths)			10.32%		12.38%
Refunds submitted to MISO	$ 1,200,000
Return on equity recommended by ALJ (in hundredths)				9.70%	6.68%
Cleco Power [Member] \| Federal Energy Regulatory Commission [Member] \| SSR [Member]
Public Utilities, General Disclosures [Line Items]
Amount to be collected annually from a regional transmission organization								$ 20,300,000
Cleco Power [Member] \| Louisiana Public Service Commission [Member] \| FRP [Member]
Public Utilities, General Disclosures [Line Items]
Return on equity established by FERC (in hundredths)							10.00%
Percentage of retail earnings within range to be returned to customers (in hundredths)							60.00%
Return on equity for customer credit, low range (in hundredths)							10.90%
Public Utilities, Return on equity for customer refund, high range							11.75%
Cleco Power [Member] \| Louisiana Public Service Commission [Member] \| 2016 FRP Monitoring report [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund										$ 0	$ 0
Cleco Power [Member] \| Louisiana Public Service Commission [Member] \| 2017 FRP Monitoring report [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund									$ 0
Cleco Power [Member] \| Louisiana Public Service Commission [Member] \| 2016 Merger Commitment Monitoring report [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund											$ 300,000
Cleco Power [Member] \| Louisiana Public Service Commission [Member] \| 2017 Merger Commitment Monitoring report [Member]
Public Utilities, General Disclosures [Line Items]
Provision for rate refund									$ 1,200,000
Cleco Power [Member] \| Maximum [Member] \| Louisiana Public Service Commission [Member] \| FRP [Member]
Public Utilities, General Disclosures [Line Items]
Return on equity established by FERC (in hundredths)							10.90%
Cleco Power [Member] \| Merger Commitments, rate credits [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												136,000,000
Rate Credits issued to customers						130,800,000
Cleco Power [Member] \| Merger Commitments, economic development contribution, disbursed over 5 years [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												2,500,000
Cleco Power [Member] \| Merger Commitments, economic development contribution [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												7,000,000
One-time contribution paid to the LED						7,000,000
Cleco Power [Member] \| Merger Commitments, charitable contribution, disbursed over 5 years [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Merger Commitments												6,000,000
Cleco Power [Member] \| Merger Commitments, cost savings [Member] \| Louisiana Public Service Commission [Member]
Public Utilities, General Disclosures [Line Items]
Refunds submitted to MISO		$ 300,000
Provision for rate refund						$ 1,800,000
Merger Commitments												$ 1,200,000