| Standard label: | Amortization of Deferred Property Taxes |
| Name: | us-gaap:AmortizationOfDeferredPropertyTaxes |
| Documentation: | The amount of amortization charged against earnings during the period for deferred property taxes. |
| 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:AmortizationOfDeferredPropertyTaxes |
| Label | Role | Language |
| Amortization of Deferred Property Taxes | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 45 28 (b) | http://www.xbrl.org/2009/role/commonPracticeRef | 230 |
| FASB Accounting Standards Codification 270 10 45 9 (c) | http://www.xbrl.org/2003/role/exampleRef | 270 |
| Part Of Roll Up: |
| us-gaap:AmortizationOfDeferredCharges |
| us-gaap:AdjustmentForAmortization |