Restricted Cash (Details) $ in Millions |
Mar. 31, 2020
USD ($)
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|---|---|
| Surety Bond [Member] | |
| Restricted Cash | |
| Reclamation bonding requirement | $ 29.9 |
| X | ||||||||||
- Definition Represents the amount of reclamation obligations, which are required to be covered by surety performance bonding, as of the balance sheet date. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Details
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