Plant, Equipment, and Mine Development, Net - Narrative (Details) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
Feb. 28, 2021	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Impairment charges and write-downs		$ 17,326	$ 23,255
Capitalized interest		654	1,831
Plant, equipment and mine development, gross		88,248	85,256
Leach pads
Property, Plant and Equipment [Line Items]
Depreciation		1,700
Plant, equipment and mine development, gross		17,431	17,432
Mine development
Property, Plant and Equipment [Line Items]
Impairment charges and write-downs		6,700
Plant, equipment and mine development, gross		0	756
Construction in progress and other
Property, Plant and Equipment [Line Items]
Additions to property, plant and equipment	$ 3,200
Capitalized interest	700
Plant, equipment and mine development, gross	$ 34,100	$ 35,794	$ 33,222

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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