INCOME AND MINING TAXES - Deferred Income Tax Recovery (Expense) and Net Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current tax (recovery) expense
United States	$ 2,073	$ 971
Foreign	2,231	(4,107)	$ 7,662
Current tax (recovery) expense	4,304	(3,136)	7,662
Deferred tax (recovery) expense
United States	(195)
Foreign	(7,157)	36,995	(1,856)
Deferred tax (recovery) expense	(7,352)	36,995	(1,856)
Mining tax (recovery) expense
United States	1,878	971
Foreign	(4,926)	32,888	5,806
Total income and mining tax (recovery) expense	(3,048)	33,859	5,806
Income (loss) before income and mining tax
United States	6,130	(7,702)	(20,618)
Foreign	(52,869)	74,738	(59,670)
(Loss) income before income and mining taxes	$ (46,739)	$ 67,036	$ (80,288)