Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue		$ 405,455	$ 184,841	$ 722,073	$ 415,075
Operating costs and expenses:
Cost of sales	[1]	162,948	96,582	299,589	222,483
Depreciation, depletion, and amortization		26,237	23,011	56,850	61,409
General and administrative expense		26,634	13,452	50,529	26,313
Exploration and evaluation		6,803	11,255	13,668	21,486
Reclamation and remediation costs		69,850	2,414	74,170	277,732
Impairment charges of long-lived and other assets		0	0	0	114,230
Care and maintenance		37,727	30,556	73,522	44,965
Other operating expense (income), net		(33,629)	(3,149)	(22,031)	12,161
Operating income (loss)		108,885	10,720	175,776	(365,704)
Other income (expense):
Interest expense		(4,227)	(2,105)	(7,596)	(6,760)
Other income (expense)		6,207	4,968	12,530	8,735
Foreign exchange gain (loss)		(10,193)	876	(16,245)	(37)
Total other income (expense)		(8,213)	3,739	(11,311)	1,938
Income (loss) before income and mining taxes		100,672	14,459	164,465	(363,766)
Income and mining tax benefit (expense)		(20,233)	(11,727)	(29,371)	8,510
Equity income (loss) of affiliates		(77)	(268)	(286)	(442)
Net income (loss)		80,362	2,464	134,808	(355,698)
Net loss (income) attributable to non-controlling interest		9,713	7,229	14,048	78,309
Net income (loss) attributable to SSR Mining shareholders		$ 90,075	$ 9,693	$ 148,856	$ (277,389)
Weighted average common shares
Basic (in shares)		202,774	202,133	202,598	202,244
Diluted (in shares)		216,989	202,407	216,691	202,244
Net income (loss) per share attributable to SSR Mining shareholders
Basic (in dollars per share)		$ 0.44	$ 0.05	$ 0.73	$ (1.37)
Diluted (in dollars per share)		$ 0.42	$ 0.05	$ 0.70	$ (1.37)

[1] Excludes depreciation, depletion, and amortization.