| Standard label: | Public Utilities, Amount of Allowance for Funds Used During Construction, Equity Costs Capitalized Only for Rate-making Purposes |
| Name: | us-gaap:PublicUtilitiesAmountOfAllowanceForFundsUsedDuringConstructionEquityCostsCapitalizedOnlyForRateMakingPurposes |
| Documentation: | Amount of costs of debt and equity financing capitalized for setting rates but not capitalized for financial statement purposes. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PublicUtilitiesAmountOfAllowanceForFundsUsedDuringConstructionEquityCostsCapitalizedOnlyForRateMakingPurposes |
| Label | Role | Language |
| Public Utilities, Amount of Allowance for Funds Used During Construction, Equity Costs Capitalized Only for Rate-making Purposes | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 980 340 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |
| FASB Accounting Standards Codification 980 835 25 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |
| FASB Accounting Standards Codification 980 835 45 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |