CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
REVENUE:
Revenue from gold and silver sales	$ 174,477	$ 166,231	$ 110,417
OPERATING EXPENSES:
Production costs applicable to sales	(113,313)	(119,230)	(91,260)
Depreciation and depletion	(30,229)	(29,221)	(19,701)
Gross profit (loss)	30,935	17,780	(544)
OTHER OPERATING EXPENSES:
Advanced projects - Los Azules		(76,345)	(61,148)
Advanced projects - Other	(7,152)	(6,292)	(5,580)
Exploration	(16,546)	(20,167)	(14,973)
General and administrative	(17,165)	(15,449)	(11,890)
Depreciation	(634)	(1,138)	(733)
Reclamation and remediation	(2,054)	(2,693)	(3,345)
Total other operating expenses	(81,507)	(179,843)	(94,893)
Operating loss	(50,572)	(162,063)	(95,437)
OTHER INCOME (EXPENSE):
Interest and other finance (expense) income, net	(4,595)	36,918	(7,789)
Other income (expense) (Note 18)	2,651	(29,976)	22,938
Dilution gain from investments in McEwen Copper Inc. (Note 9)	5,777
Gain on deconsolidation of McEwen Copper Inc. (Note 9)		222,157
Total other income	3,833	229,099	15,149
(Loss) income before income and mining taxes	(46,739)	67,036	(80,288)
Income and mining tax recovery (expense) (Note 19)	3,048	(33,859)	(5,806)
Net (loss) income after income and mining taxes	(43,691)	33,177	(86,094)
Net loss attributable to non-controlling interests		22,122	5,019
Net (loss) income and comprehensive (loss) income attributable to McEwen shareholders	$ (43,691)	$ 55,299	$ (81,075)
Net (loss) income per share (Note 14):
Basic (in dollars per share)	$ (0.86)	$ 1.16	$ (1.71)
Diluted (in dollars per share)	$ (0.86)	$ 1.16	$ (1.71)
Weighted average common shares outstanding (thousands) (Note 14):
Basic (in shares)	51,021	47,544	47,427
Diluted (in shares)	51,021	47,544	47,427
McEwen Copper
OTHER OPERATING EXPENSES:
Advanced projects - Other	$ (114,544)
Income (loss) from equity method investments	(46,977)	$ (57,821)
OTHER INCOME (EXPENSE):
Interest and other finance (expense) income, net	19,130
Dilution gain from investments in McEwen Copper Inc. (Note 9)	5,800
(Loss) income before income and mining taxes	(98,979)
Net (loss) income and comprehensive (loss) income attributable to McEwen shareholders	(98,979)
Minera Santa Cruz S.A.
REVENUE:
Revenue from gold and silver sales	310,411	254,926	$ 254,698
OPERATING EXPENSES:
Depreciation and depletion	(51,188)	(58,935)	(32,200)
OTHER OPERATING EXPENSES:
Income (loss) from equity method investments	9,021	62	2,776
OTHER INCOME (EXPENSE):
(Loss) income before income and mining taxes	31,184	5,434	11,642
Income and mining tax recovery (expense) (Note 19)	37	517	628
Net (loss) income and comprehensive (loss) income attributable to McEwen shareholders	$ 24,636	$ 8,485	$ 12,863