Assets Held For Sale - Narrative (Details) $ in Thousands	1 Months Ended			12 Months Ended		17 Months Ended
	Dec. 31, 2022 USD ($) sub-stationTransformer	Aug. 31, 2022 USD ($) mill	Feb. 28, 2022 USD ($)	Dec. 31, 2023 USD ($) mill sub-stationTransformer	Dec. 31, 2022 USD ($) sub-stationTransformer	Dec. 31, 2023 USD ($) mill sub-stationTransformer	Jun. 30, 2023 USD ($)	Mar. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 7,148			$ 7,148	$ 7,148	$ 7,148
Number of transformers to be purchased | sub-stationTransformer				1		1
Proceeds from assets held for sale				$ 0	6,574
Commissions on sale, percentage	17.50%
SAG Mill And Ball Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale		$ 12,000
Assets held for sale, additional consideration	$ 1,600
Aggregate purchase price	13,600
Proceeds from assets held for sale	1,100			500		$ 1,600
Receivable final payment on asset held for sale							$ 12,500
Assets Held For Sale, Monthly Required Interest Payments Received				800	$ 0
Outstanding balance				$ 12,100		$ 12,100
SAG Mill And Ball Mill | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Received interest percentage on outstanding							5.00%
SAG Mill And Ball Mill | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Received interest percentage on outstanding								7.50%
Regrind mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from assets held for sale			$ 1,300
Mine equipment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from assets held for sale		$ 100
Dual Pinion Ball Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from assets held for sale	$ 6,300
Ball mills
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of mills | mill		1		1		1
SAG mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of mills | mill		1		1		1
Sub-Station Transformer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of transformers to be purchased | sub-stationTransformer	1			1	1	1