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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.

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