Acquisitions (Schedule of Preliminary Allocation of Purchase Price) (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
| |
| Acquisitions | |
| Purchase price | $ 14,280 |
| Prepaid expenses and other current assets | 60 |
| Mineral interests and mineral rights | 19,413 |
| Other non-current assets | 460 |
| Total assets | 19,933 |
| Deferred tax liability | 5,615 |
| Reclamation and remediation liabilities | 38 |
| Total liabilities | 5,653 |
| Net fair value | $ 14,280 |