Details for Selection
| Standard label: | Asset Retirement Obligation, Legally Restricted Assets, Fair Value |
| Name: | us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue |
| Documentation: | Carrying amount of an asset that is legally restricted for purposes of settling an asset retirement obligation. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As of (instant) |
| Balance type: | Debit |
| Object class: | [Concept] |