INVESTMENT IN MSC - SAN JOSE MINE - Summary of Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Revenue from gold and silver sales	$ 34,752	$ 25,542
Depreciation and depletion	(6,896)	(3,712)
Net loss before tax	(36,946)	(21,878)
Net loss	(43,076)	(20,730)
Income tax recovery	536	814
Loss from investment in MSC, net of amortization	$ (3,461)	$ (1,120)
Subsidiary (as a percent)	100.00%	100.00%
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
Net loss	$ (2,687)	$ (630)
Amortization of fair value increments	(884)	(613)
Income tax recovery	110	123
Loss from investment in MSC, net of amortization	$ (3,461)	(1,120)
Subsidiary ownership interest (as a percent)	51.90%
Minera Santa Cruz S.A. [Member]
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE
Revenue from gold and silver sales	$ 45,740	39,207
Production costs applicable to sales	(41,124)	(31,789)
Depreciation and depletion	(8,230)	(6,896)
Gross (loss) profit	(3,614)	522
Exploration	(1,952)	(1,735)
Other expenses	(3,234)	(3,880)
Net loss before tax	(8,800)	(5,093)
Current and deferred tax recovery (expense)	3,315	3,807
Net loss	(5,485)	$ (1,286)
Net loss	(2,687)		$ 6,303
Amortization of fair value increments	(884)		(4,155)
Income tax recovery	$ 110		$ 628