Segment Reporting (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025		Mar. 31, 2024	Dec. 31, 2024
Financial information relating to reporting segments
Revenue		$ 360,062		$ 213,060
Amortization		43,093		27,297
Other operating expenses		30,865	[1]	32,632
Costs and Expenses		297,906		216,417
Income (loss) from operations		62,156		(3,357)
Gain on debt extinguishment		0		438
Fair value adjustments, net, pretax		(346)		0
Interest Income (Expense), Nonoperating		(10,450)		(12,947)
Other, net	[2]	406		2,773
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		51,766		(13,093)
Income and mining tax (expense) benefit		(18,413)		(16,024)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		33,353		(29,117)
Assets, Net		3,898,776	[3]	1,981,261	$ 2,161,881
Capital expenditures		50,002		42,083
Las Chispas
Financial information relating to reporting segments
Amortization		8,936
Other operating expenses	[1]	67
Costs and Expenses		53,715
Income (loss) from operations		4,304
Fair value adjustments, net, pretax		0
Interest Income (Expense), Nonoperating		17
Other, net	[2]	428
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		4,715
Income and mining tax (expense) benefit		(1,852)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		2,863
Assets, Net	[3]	1,717,053
Capital expenditures		5,338
Palmarejo
Financial information relating to reporting segments
Amortization		9,181		12,602
Other operating expenses		1,629	[1]	2,254
Costs and Expenses		58,373		71,635
Income (loss) from operations		37,433		24,743
Gain on debt extinguishment				0
Fair value adjustments, net, pretax		0		0
Interest Income (Expense), Nonoperating		15		(26)
Other, net		(688)	[2]	546
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		36,760		25,263
Income and mining tax (expense) benefit		(11,099)		(11,683)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		25,661		13,580
Assets, Net		312,023	[3]	314,217
Capital expenditures		5,857		6,761
Rochester
Financial information relating to reporting segments
Amortization		14,907		6,633
Other operating expenses		2,754	[1]	5,750
Costs and Expenses		67,664		39,813
Income (loss) from operations		14,962		(9,984)
Gain on debt extinguishment				0
Fair value adjustments, net, pretax		(346)		0
Interest Income (Expense), Nonoperating		2,258		(1,340)
Other, net		(88)	[2]	30
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		12,270		(11,294)
Income and mining tax (expense) benefit		(613)		234
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		11,657		(11,060)
Assets, Net		1,229,683	[3]	1,110,479
Capital expenditures		14,853		21,243
Kensington
Financial information relating to reporting segments
Amortization		7,471		5,596
Other operating expenses		570	[1]	7,626
Costs and Expenses		53,498		54,056
Income (loss) from operations		11,745		(10,537)
Gain on debt extinguishment				0
Fair value adjustments, net, pretax		0		0
Interest Income (Expense), Nonoperating		177		(471)
Other, net		(85)	[2]	(81)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		11,483		(11,089)
Income and mining tax (expense) benefit		(488)		0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		10,995		(11,089)
Assets, Net		233,190	[3]	182,085
Capital expenditures		15,473		13,258
Wharf
Financial information relating to reporting segments
Amortization		1,474		1,393
Other operating expenses		1,188	[1]	1,101
Costs and Expenses		32,328		28,032
Income (loss) from operations		26,040		15,302
Gain on debt extinguishment				0
Fair value adjustments, net, pretax		0		0
Interest Income (Expense), Nonoperating		98		(152)
Other, net		(43)	[2]	(42)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		25,899		15,108
Income and mining tax (expense) benefit		(2,522)		(1,136)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		23,377		13,972
Assets, Net		124,776	[3]	102,351
Capital expenditures		7,364		308
Silvertip [Member]
Financial information relating to reporting segments
Amortization		946		852
Other operating expenses		3,078	[1]	2,705
Costs and Expenses		10,131		8,837
Income (loss) from operations		(10,131)		(8,837)
Gain on debt extinguishment				0
Fair value adjustments, net, pretax		0		0
Interest Income (Expense), Nonoperating		0		(6)
Other, net		97	[2]	(58)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(10,034)		(8,901)
Income and mining tax (expense) benefit		0		0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(10,034)		(8,901)
Assets, Net		219,103	[3]	214,522
Capital expenditures		854		509
Other Mining Properties [Member]
Financial information relating to reporting segments
Amortization		178		221
Other operating expenses		21,579	[1]	13,196
Costs and Expenses		22,197		14,044
Income (loss) from operations		(22,197)		(14,044)
Gain on debt extinguishment				438
Fair value adjustments, net, pretax		0		0
Interest Income (Expense), Nonoperating		7,915		(10,952)
Other, net		785	[2]	2,378
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(29,327)		(22,180)
Income and mining tax (expense) benefit		(1,839)		(3,439)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(31,166)		(25,619)
Assets, Net		62,948	[3]	57,607
Capital expenditures		263		4
Gold [Member]
Financial information relating to reporting segments
Revenue		235,327		151,769
Gold [Member] | Las Chispas
Financial information relating to reporting segments
Revenue		27,882
Gold [Member] | Palmarejo
Financial information relating to reporting segments
Revenue		43,695		53,902
Gold [Member] | Rochester
Financial information relating to reporting segments
Revenue		41,783		12,681
Gold [Member] | Kensington
Financial information relating to reporting segments
Revenue		65,207		43,485
Gold [Member] | Wharf
Financial information relating to reporting segments
Revenue		56,760		41,701
Gold [Member] | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0
Gold [Member] | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0
Product, Silver
Financial information relating to reporting segments
Revenue		124,735		61,291
Product, Silver | Las Chispas
Financial information relating to reporting segments
Revenue		30,137
Product, Silver | Palmarejo
Financial information relating to reporting segments
Revenue		52,111		42,476
Product, Silver | Rochester
Financial information relating to reporting segments
Revenue		40,843		17,148
Product, Silver | Kensington
Financial information relating to reporting segments
Revenue		36		34
Product, Silver | Wharf
Financial information relating to reporting segments
Revenue		1,608		1,633
Product, Silver | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0
Product, Silver | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0
Product, Metal [Member]
Financial information relating to reporting segments
Revenue		360,062		213,060
Product, Metal [Member] | Las Chispas
Financial information relating to reporting segments
Revenue		58,019
Product, Metal [Member] | Palmarejo
Financial information relating to reporting segments
Revenue		95,806		96,378
Product, Metal [Member] | Rochester
Financial information relating to reporting segments
Revenue		82,626		29,829
Product, Metal [Member] | Kensington
Financial information relating to reporting segments
Revenue		65,243		43,519
Product, Metal [Member] | Wharf
Financial information relating to reporting segments
Revenue		58,368		43,334
Product, Metal [Member] | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0
Product, Metal [Member] | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0
Product
Financial information relating to reporting segments
Costs applicable to sales	[4]	204,266		145,997
Product | Las Chispas
Financial information relating to reporting segments
Costs applicable to sales	[4]	42,834
Product | Palmarejo
Financial information relating to reporting segments
Costs applicable to sales		43,703	[4]	54,294
Product | Rochester
Financial information relating to reporting segments
Costs applicable to sales		48,536	[4]	26,999
Product | Kensington
Financial information relating to reporting segments
Costs applicable to sales		42,156	[4]	39,289
Product | Wharf
Financial information relating to reporting segments
Costs applicable to sales		27,037	[4]	25,415
Product | Silvertip [Member]
Financial information relating to reporting segments
Costs applicable to sales		0	[4]	0
Product | Other Mining Properties [Member]
Financial information relating to reporting segments
Costs applicable to sales		0	[4]	0
Mineral, Exploration
Financial information relating to reporting segments
Costs applicable to sales		19,682		10,491
Mineral, Exploration | Las Chispas
Financial information relating to reporting segments
Costs applicable to sales		1,878
Mineral, Exploration | Palmarejo
Financial information relating to reporting segments
Costs applicable to sales		3,860		2,485
Mineral, Exploration | Rochester
Financial information relating to reporting segments
Costs applicable to sales		1,467		431
Mineral, Exploration | Kensington
Financial information relating to reporting segments
Costs applicable to sales		3,301		1,545
Mineral, Exploration | Wharf
Financial information relating to reporting segments
Costs applicable to sales		2,629		123
Mineral, Exploration | Silvertip [Member]
Financial information relating to reporting segments
Costs applicable to sales		6,107		5,280
Mineral, Exploration | Other Mining Properties [Member]
Financial information relating to reporting segments
Costs applicable to sales		$ 440		$ 627

[1] Other operating expenses include General and administrative and Pre-development, reclamation, and other

[2] See Note 14 -- Additional Comprehensive Income (Loss) Detail for additional detail.

[3] Segment assets include receivables, prepaids, inventories, property, plant and equipment, mineral interests, and goodwill

[4] Excludes amortization.