INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE - Assets and Liabilities Associated with MSC (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	$ 125,790	$ 81,652
Total assets	572,693	528,719
Current liabilities	(53,462)	(84,186)
Total liabilities	(138,719)	$ (172,445)
Minera Santa Cruz S.A. | Balance excluding FV increments
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	86,887
Total assets	189,181
Current liabilities	(53,460)
Total liabilities	(87,400)
Minera Santa Cruz S.A. | Adjustments
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	636
Total assets	74,460
Total liabilities	(585)
Minera Santa Cruz S.A. | Balance including FV increments
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	87,523
Total assets	263,641
Current liabilities	(53,460)
Total liabilities	$ (87,985)