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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.

No definition available.

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

No definition available.

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

No definition available.

Name:	us-gaap_CustomerRefundLiabilityCurrent
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Amount of refund payments made to customers during the period.

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=27012821&loc=d3e214044-122780

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 13
-Section A
-Paragraph a
-Subsection 4

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Percentage of public utility's approved return on equity.

No definition available.

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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.

No definition available.

Name:	us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
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