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INVESTMENT IN MSC - SAN JOSE MINE (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Revenue from gold and silver sales	$ 28,240	$ 25,988	$ 30,647	$ 25,542	$ 34,966	$ 37,129	$ 40,706	$ 23,740	$ 110,417	$ 136,541	$ 104,789
Depreciation and depletion									(19,701)	(23,798)	(22,910)
Other expenses											(1,968)
Net income before tax									(80,288)	(64,199)	(153,715)
Net income	$ (37,364)	$ (9,976)	$ (14,409)	$ (19,327)	$ (20,856)	$ (17,401)	$ (5,989)	$ (12,466)	(81,075)	(56,712)	(152,325)
Income tax recovery									(5,806)	7,315	1,390
Income (loss) from investment in MSC, net of amortization									$ 2,776	(7,533)	(1,517)
Subsidiary of Common Parent [Member]
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Subsidiary ownership interest (as a percent)	49.00%								49.00%
Minera Santa Cruz S.A. [Member] | Subsidiary of Common Parent [Member]
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Income (loss) from investment in MSC, net of amortization									$ 2,776	(7,533)	(1,517)
Minera Santa Cruz S.A. [Member]
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Revenue from gold and silver sales									254,698	271,863	219,020
Production costs applicable to sales									(182,195)	(196,033)	(138,182)
Depreciation and depletion									(32,200)	(39,948)	(29,809)
Gross profit									40,303	35,882	51,029
Exploration									(8,946)	(10,602)	(10,446)
Other expenses (1)									(19,715)	(17,077)	(30,515)
Net income before tax									11,642	8,203	10,068
Current and deferred tax recovery (expense)									1,221	(7,934)	(4,466)
Net income									12,863	269	5,602
Net income (loss)									6,303	132
Amortization of fair value increments									(4,155)	(8,331)
Income tax recovery									628	666
Minera Santa Cruz S.A. [Member] | Subsidiary of Common Parent [Member]
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Net income (loss)									6,303	132	2,745
Amortization of fair value increments									(4,155)	(8,331)	(5,390)
Income tax recovery									$ 628	$ 666	$ 1,128
Subsidiary ownership interest (as a percent)	68.10%								68.10%

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