Details for Selection
| Standard label: | Deferred Purchased Power Costs |
| Name: | us-gaap:DeferredPurchasedPowerCosts |
| Documentation: | Costs of power used for operations in prior periods that were expected to be recovered from customers in future periods. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For period (duration) |
| Balance type: | Debit |
| Object class: | [Concept] |