CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
REVENUE:
Revenue from gold and silver sales	$ 166,231	$ 110,417	$ 136,541
OPERATING EXPENSES:
Depreciation and depletion	(29,221)	(19,701)	(23,798)
Gross profit (loss)	17,780	(544)	(6,480)
OTHER OPERATING EXPENSES:
Advanced projects - Los Azules	(76,345)	(61,148)	(5,019)
Advanced projects - Other	(6,292)	(5,580)	(7,420)
Exploration	(20,167)	(14,973)	(22,604)
General and administrative	(15,449)	(11,890)	(11,435)
Income (loss) from investment (Note 9)	(57,759)	2,776	(7,533)
Depreciation	(1,138)	(733)	(339)
Reclamation and remediation (Note 12)	(2,693)	(3,345)	(3,450)
Total other operating expenses	(179,843)	(94,893)	(57,800)
Operating loss	(162,063)	(95,437)	(64,280)
OTHER INCOME (EXPENSE):
Interest and other finance income (expenses), net	36,918	(7,789)	(6,200)
Other (expense) income (Note 4)	(29,976)	22,938	6,281
Gain on deconsolidation of McEwen Copper Inc. (Note 20)	222,157
Total other income	229,099	15,149	81
Income (loss) before income and mining taxes	67,036	(80,288)	(64,199)
Income and mining tax (expense) recovery (Note 19)	(33,859)	(5,806)	7,315
Net income (loss) after income and mining taxes	33,177	(86,094)	(56,884)
Net loss attributable to non-controlling interests	22,122	5,019	172
Net income (loss) and comprehensive income (loss) attributable to McEwen shareholders	$ 55,299	$ (81,075)	$ (56,712)
Net income (loss) per share (Note 14):
Basic (in dollars per share)	$ 1.16	$ (1.71)	$ (1.25)
Diluted (in dollars per share)	$ 1.16	$ (1.71)	$ (1.25)
Weighted average common shares outstanding (thousands) (Note 14):
Basic (in shares)	47,544	47,427	45,490
Diluted (in shares)	47,544	47,427	45,490
McEwen Copper Inc
OTHER OPERATING EXPENSES:
Income (loss) from investment (Note 9)	$ (57,821)
OTHER INCOME (EXPENSE):
Interest and other finance income (expenses), net	19,356
Income (loss) before income and mining taxes	121,141
Net income (loss) and comprehensive income (loss) attributable to McEwen shareholders	121,141
Minera Santa Cruz S.A.
REVENUE:
Revenue from gold and silver sales	254,926	$ 254,698	$ 271,863
OPERATING EXPENSES:
Depreciation and depletion	(58,935)	(32,200)	(39,948)
OTHER OPERATING EXPENSES:
Income (loss) from investment (Note 9)	62	2,776	(7,533)
OTHER INCOME (EXPENSE):
Income (loss) before income and mining taxes	5,434	11,642	8,203
Income and mining tax (expense) recovery (Note 19)	517	628	666
Net income (loss) and comprehensive income (loss) attributable to McEwen shareholders	8,485	12,863	269
Gold and silver sales
REVENUE:
Revenue from gold and silver sales	166,231	110,417	136,541
Production costs applicable to sales
OPERATING EXPENSES:
Production costs applicable to sales	$ (119,230)	$ (91,260)	$ (119,223)