| Standard label: | Public Utilities, Property, Plant and Equipment, Amortization of Present Value of Regulated Asset for Plant Abandonment |
| Name: | us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmortizationOfPresentValueOfRegulatedAssetForPlantAbandonment |
| Documentation: | Amortization of the present value amount of future cost recoveries related to plant abandonment in regulated industries. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmortizationOfPresentValueOfRegulatedAssetForPlantAbandonment |
| Label | Role | Language |
| Public Utilities, Property, Plant and Equipment, Amortization of Present Value of Regulated Asset for Plant Abandonment | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 980 360 35 2 | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |
| FASB Accounting Standards Codification 980 360 35 3 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |