Inventory and Ore on Leach Pads (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventory, Finished Goods, Net of Reserves	$ 4,351	$ 2,909
Other Inventory, Net of Reserves	13,198	14,788
Inventory, Supplies, Net of Reserves	36,922	33,513
Inventory	54,471	51,210
Ore on Leach Pad, Current	81,773	74,866
Ore on leach pads, noncurrent	73,487	81,963
Inventory, Ore Stockpiles on Leach Pads, Gross	155,260	156,829
Inventory and Ore on Leach Pads	224,254	213,703
Long-Term Inventory Stockpile	$ 14,523	$ 5,664

Inventory and Ore on Leach Pads.

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Value of inventory stockpile classified as long-term.

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Ore on leach pad current.

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Ore on leach pad non current.

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- Definition

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before last-in first-out (LIFO) and valuation reserves of ore stockpile material contained on a leach pad, for example, but not limited to, copper or gold ore.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods.

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Amount, after of valuation reserves and allowances, of inventory, classified as other, expected to be sold, or consumed within one year or operating cycle, if longer.

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