Segment Reporting (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024		Jun. 30, 2023		Dec. 31, 2023
Financial information relating to reporting segments
Revenue		$ 222,026		$ 177,235		$ 435,086		$ 364,533
Amortization		27,928		19,595		55,225		42,303
Other operating expenses		19,831		20,149		52,463		43,122
Fair value adjustments, net, pretax		0		(3,922)		0		6,639
Interest expense, net of capitalized interest		(13,162)		(6,912)		(26,109)		(14,301)
Other, net		5,122		(9,607)		7,895		(10,568)	[1]
Income and mining tax (expense) benefit		(7,189)		(9,866)		(23,213)		(20,574)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		1,426		(32,412)		(27,691)		(56,998)
Net income (loss)		1,426	$ (29,117)	(32,412)	$ (24,586)	(27,691)		(56,998)
Assets, Net	[2]	1,998,277		1,832,712		1,998,277		1,832,712		$ 1,943,037
Capital expenditures		51,405		85,581		93,488		159,629
Gain on debt extinguishment		(21)		2,961		417		2,961
Palmarejo [Member]
Financial information relating to reporting segments
Amortization		10,843		8,017		23,445		16,736
Other operating expenses		2,446		2,233		4,700		3,759
Fair value adjustments, net, pretax		0		0		0		0
Interest expense, net of capitalized interest		397		178		371		300
Other, net		2,881		3,022		3,427	[1]	2,884	[1]
Income and mining tax (expense) benefit		(7,311)		(6,220)		(18,994)		(15,922)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		15,119		11,253		28,699		23,019
Assets, Net	[2]	302,034		311,609		302,034		311,609
Capital expenditures		5,871		11,914		12,632		22,064
Gain on debt extinguishment		0		0		0		0
Rochester
Financial information relating to reporting segments
Amortization		8,570		3,649		15,203		8,867
Other operating expenses		2,826		2,400		8,576		4,425
Fair value adjustments, net, pretax		0		0		0		0
Interest expense, net of capitalized interest		(1,055)		(287)		(2,395)		(462)
Other, net		(146)		(47)		(116)	[1]	(140)	[1]
Income and mining tax (expense) benefit		672		137		906		376
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(6,793)		(3,492)		(17,853)		(20,112)
Assets, Net	[2]	1,125,586		977,958		1,125,586		977,958
Capital expenditures		27,530		61,458		48,773		113,420
Gain on debt extinguishment		0		0		0		0
Kensington
Financial information relating to reporting segments
Amortization		6,445		4,801		12,041		10,645
Other operating expenses		1,129		960		8,755		1,944
Fair value adjustments, net, pretax		0		0		0		0
Interest expense, net of capitalized interest		(499)		(325)		(970)		(855)
Other, net		(82)		(80)		(163)	[1]	(151)	[1]
Income and mining tax (expense) benefit		0		0		0		0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		887		(23,041)		(10,202)		(28,650)
Assets, Net	[2]	196,671		160,145		196,671		160,145
Capital expenditures		16,477		11,656		29,735		22,358
Gain on debt extinguishment		0		0		0		0
Wharf
Financial information relating to reporting segments
Amortization		1,067		1,805		2,460		3,214
Other operating expenses		1,144		1,029		2,245		2,043
Fair value adjustments, net, pretax		0		0		0		0
Interest expense, net of capitalized interest		(125)		(30)		(277)		(44)
Other, net		(45)		145		(87)	[1]	(331)	[1]
Income and mining tax (expense) benefit		(1,872)		(2,301)		(3,008)		(2,720)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		20,469		17,956		34,441		21,973
Assets, Net	[2]	108,268		103,249		108,268		103,249
Capital expenditures		1,156		150		1,464		271
Gain on debt extinguishment		0		0		0		0
Silvertip [Member]
Financial information relating to reporting segments
Amortization		790		1,021		1,642		2,242
Other operating expenses		2,404		4,961		5,109		11,507
Fair value adjustments, net, pretax		0		0		0		0
Interest expense, net of capitalized interest		(4)		(18)		(10)		(40)
Other, net		18		(110)		(40)	[1]	(119)	[1]
Income and mining tax (expense) benefit		0		0		0		0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(9,625)		(4,482)		(18,526)		(13,777)
Assets, Net	[2]	213,833		217,831		213,833		217,831
Capital expenditures		350		138		859		807
Gain on debt extinguishment		0		0		0		0
Other Mining Properties [Member]
Financial information relating to reporting segments
Amortization		213		302		434		599
Other operating expenses		9,882		8,566		23,078		19,444
Fair value adjustments, net, pretax		0		(3,922)		0		6,639
Interest expense, net of capitalized interest		(11,876)		(6,430)		(22,828)		(13,200)
Other, net		2,496		(12,537)		4,874	[1]	(12,711)	[1]
Income and mining tax (expense) benefit		1,322		(1,482)		(2,117)		(2,308)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(18,631)		(30,606)		(44,250)		(39,451)
Assets, Net	[2]	51,885		61,920		51,885		61,920
Capital expenditures		21		265		25		709
Gain on debt extinguishment		(21)		2,961		417		2,961
Gold [Member]
Financial information relating to reporting segments
Revenue		154,085		121,355		305,854		248,456
Gold [Member] | Palmarejo [Member]
Financial information relating to reporting segments
Revenue		42,411		35,296		96,313		75,903
Gold [Member] | Rochester
Financial information relating to reporting segments
Revenue		17,368		12,638		30,049		28,685
Gold [Member] | Kensington
Financial information relating to reporting segments
Revenue		51,104		24,538		94,589		64,662
Gold [Member] | Wharf
Financial information relating to reporting segments
Revenue		43,202		48,883		84,903		79,206
Gold [Member] | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Gold [Member] | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Product, Silver
Financial information relating to reporting segments
Revenue		67,941		55,880		129,232		116,077
Product, Silver | Palmarejo [Member]
Financial information relating to reporting segments
Revenue		40,835		37,432		83,311		79,132
Product, Silver | Rochester
Financial information relating to reporting segments
Revenue		25,396		16,463		42,544		34,316
Product, Silver | Kensington
Financial information relating to reporting segments
Revenue		(50)		63		(16)		137
Product, Silver | Wharf
Financial information relating to reporting segments
Revenue		1,760		1,922		3,393		2,492
Product, Silver | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Product, Silver | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Product, Metal [Member]
Financial information relating to reporting segments
Revenue		222,026		177,235		435,086		364,533
Product, Metal [Member] | Palmarejo [Member]
Financial information relating to reporting segments
Revenue		83,246		72,728		179,624		155,035
Product, Metal [Member] | Rochester
Financial information relating to reporting segments
Revenue		42,764		29,101		72,593		63,001
Product, Metal [Member] | Kensington
Financial information relating to reporting segments
Revenue		51,054		24,601		94,573		64,799
Product, Metal [Member] | Wharf
Financial information relating to reporting segments
Revenue		44,962		50,805		88,296		81,698
Product, Metal [Member] | Silvertip [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Product, Metal [Member] | Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0		0		0		0
Product
Financial information relating to reporting segments
Costs applicable to sales	[3]	144,717		139,637		290,714		292,693
Product | Palmarejo [Member]
Financial information relating to reporting segments
Costs applicable to sales		48,227		46,591		102,521	[3]	95,856	[3]
Product | Rochester
Financial information relating to reporting segments
Costs applicable to sales		36,655		26,068		63,654	[3]	68,933	[3]
Product | Kensington
Financial information relating to reporting segments
Costs applicable to sales		40,721		39,149		80,010	[3]	76,531	[3]
Product | Wharf
Financial information relating to reporting segments
Costs applicable to sales		19,114		27,829		44,529	[3]	51,373	[3]
Product | Silvertip [Member]
Financial information relating to reporting segments
Costs applicable to sales		0		0		0	[3]	0	[3]
Product | Other Mining Properties [Member]
Financial information relating to reporting segments
Costs applicable to sales		0		0		0	[3]	0	[3]
Mineral, Exploration
Financial information relating to reporting segments
Costs applicable to sales		12,874		2,920		23,365		7,570
Mineral, Exploration | Palmarejo [Member]
Financial information relating to reporting segments
Costs applicable to sales		2,578		1,614		5,063		2,927
Mineral, Exploration | Rochester
Financial information relating to reporting segments
Costs applicable to sales		977		279		1,408		662
Mineral, Exploration | Kensington
Financial information relating to reporting segments
Costs applicable to sales		1,291		2,327		2,836		3,323
Mineral, Exploration | Wharf
Financial information relating to reporting segments
Costs applicable to sales		1,126		0		1,249		0
Mineral, Exploration | Silvertip [Member]
Financial information relating to reporting segments
Costs applicable to sales		6,445		(1,628)		11,725		(131)
Mineral, Exploration | Other Mining Properties [Member]
Financial information relating to reporting segments
Costs applicable to sales		$ 457		$ 328		$ 1,084		$ 789

[1] See Note 13 -- Additional Comprehensive Income (Loss) Detail for additional detail.

[2] Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests.

[3] Excludes amortization.