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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.

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