Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Sales	$ 304,027	$ 245,657	$ 565,366	$ 435,185
Cost of sales and other direct production costs	147,344	140,464	296,294	261,925
Depreciation, depletion and amortization	37,159	53,763	75,544	102,670
Total cost of sales	184,503	194,227	371,838	364,595
Gross profit	119,524	51,430	193,528	70,590
Other operating expenses:
General and administrative	12,540	14,740	24,539	25,956
Exploration and pre-development	8,809	6,682	13,310	11,024
Ramp-up and suspension costs	4,165	5,538	7,471	20,061
Provision for closed operations and environmental matters	844	1,153	1,634	2,139
Other operating (income) expense, net	(590)	(17,283)	463	(34,254)
Total other operating expenses	25,768	10,830	47,417	24,926
Income from operations	93,756	40,600	146,111	45,664
Other expense:
Interest expense	(11,099)	(12,505)	(22,650)	(25,149)
Fair value adjustments, net	9,615	5,002	13,242	3,150
Net foreign exchange (loss) gain	(3,517)	2,673	(3,873)	6,655
Other income	1,511	1,180	2,453	2,692
Total other expense	(3,490)	(3,650)	(10,828)	(12,652)
Income before income and mining taxes	90,266	36,950	135,283	33,012
Income and mining tax provision	(32,561)	(9,080)	(48,706)	(10,895)
Net Income (Loss)	57,705	27,870	86,577	22,117
Preferred stock dividends	(138)	(138)	(276)	(276)
Net income applicable to common stockholders	57,567	27,732	86,301	21,841
Comprehensive income:
Net income (loss)	57,705	27,870	86,577	22,117
Change in fair value of derivative contracts designated as hedge transactions	3,253	(6,488)	5,687	(11,891)
Comprehensive income	$ 60,958	$ 21,382	$ 92,264	$ 10,226
Basic income per common share after preferred dividends	$ 0.09	$ 0.04	$ 0.14	$ 0.04
Diluted income per common share after preferred dividends	$ 0.09	$ 0.04	$ 0.14	$ 0.04
Weighted average number of common shares outstanding - basic	636,928	617,106	634,339	616,649
Weighted average number of common shares outstanding - diluted	639,739	622,206	636,991	620,359