Details for Selection
| Standard label: | Prepaid Mineral Royalties, Noncurrent |
| Name: | us-gaap:PrepaidMineralRoyaltiesNoncurrent |
| Documentation: | Carrying amount as of the balance sheet date of capitalized amounts paid for mineral royalties which will be charged against earnings after one year or beyond the normal operating cycle, if longer. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As of (instant) |
| Balance type: | Debit |
| Object class: | [Concept] |