Details for Selection
| Standard label: | Cost of Natural Gas Purchases |
| Name: | us-gaap:CostOfNaturalGasPurchases |
| Documentation: | Cost of natural gas purchased and associated transportation and storage costs during the period. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For period (duration) |
| Balance type: | Debit |
| Object class: | [Concept] |