INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE - Assets and Liabilities Associated with MSC (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	$ 91,978	$ 59,376
Total assets	631,223	616,941
Current liabilities	(48,795)	(36,012)
Total liabilities	(131,744)	$ (130,995)
Balance excluding FV increments \| MSC
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	82,660
Total assets	180,832
Current liabilities	(39,381)
Total liabilities	(69,438)
Adjustments \| MSC
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	444
Total assets	119,707
Total liabilities	(6,238)
Balance including FV increments \| MSC
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Current assets	83,104
Total assets	300,539
Current liabilities	(39,381)
Total liabilities	$ (75,676)

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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