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Nature of Operations and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Nature of Operations and Summary of Significant Accounting Policies |
Summary of estimated economic lives of of depreciable assets | ​
​ | ​ | ​ | ​
​ | Range of Lives | ​
Asset retirement costs | ​ | UOP | ​
Furniture, computer and office equipment | ​ | 3 to 10 years | ​
Light vehicles and other mobile equipment | ​ | 4 years | ​
Machinery and equipment | ​ | UOP to 8 years | ​
Mill facilities and related infrastructure | ​ | UOP | ​
Mine development and mineral interests | ​ | UOP | ​
Buildings and infrastructure | ​ | UOP to 4 years | ​
​

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