Assets Held For Sale (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2023 USD ($)	Dec. 31, 2022 USD ($) sub-stationTransformer	Jun. 30, 2023 USD ($) mill	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) mill	Jun. 30, 2022 USD ($)	Mar. 31, 2023	Aug. 31, 2022 USD ($) mill
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
Number of transformers | sub-stationTransformer		1
Proceeds from assets held for sale					0	$ 1,890
Interest income			$ 2,121	$ 20	$ 4,059	$ 20
Ball Mill
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
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 amount		$ 1,600
Aggregate purchase price		$ 13,600
Proceeds from assets held for sale					$ 1,200
Receivable final payment on asset held for sale			$ 12,500		12,500
Interest income	$ 100		$ 200		400
Non-refundable payments					100
Funds raised by buyer					$ 1,000
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%		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%
Non-refundable payments					$ 400