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Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Receivables | $ 22,606 | $ 23,484 |  |
Ore on leach pads | 78,689 | 74,866 |  |
Inventory | 53,591 | 51,210 |  |
Prepaid expenses and other | 27,274 | 27,254 |  |
Current assets | 336,226 | 269,608 |  |
Property, plant and equipment, net | 248,237 | 230,139 |  |
Equity securities |  | 12,943 |  |
Other | 60,590 | 56,595 |  |
TOTAL ASSETS | 1,515,415 | 1,403,977 |  |
Accounts payable | 96,715 | 90,577 |  |
Accrued liabilities and other | 62,682 | 119,158 |  |
Debt | 21,404 | 22,074 |  |
Reclamation | 2,299 | 2,299 |  |
Current liabilities | 183,100 | 234,108 |  |
Debt | 390,721 | 253,427 |  |
Reclamation | 139,112 | 136,975 |  |
Deferred tax liabilities | 34,577 | 34,202 |  |
Other long-term liabilities | 47,399 | 51,786 |  |
Non-current liabilities | 611,809 | 476,390 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,469,002 issued and outstanding at March 31, 2021 and 243,751,283 at December 31, 2020 | 2,435 | 2,438 |  |
Additional paid-in capital | 3,610,631 | 3,610,297 |  |
Accumulated deficit | (2,906,060) | (2,908,120) |  |
Accumulated other comprehensive income (loss) | 13,500 | (11,136) |  |
Stockholders' equity | 720,506 | 693,479 | $ 660,644 | $ 667,004
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 1,515,415 | 1,403,977 |  |
Coeur Mining, Inc. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 79,288 | 12,727 |  |
Receivables | 396 | 381 |  |
Ore on leach pads | 0 | 0 |  |
Inventory | 0 | 0 |  |
Prepaid expenses and other | 21,664 | 20,872 |  |
Current assets | 101,348 | 33,980 |  |
Property, plant and equipment, net | 1,987 | 1,946 |  |
Mining properties, net | 0 | 0 |  |
Ore on leach pads | 0 | 0 |  |
Restricted assets | 1,481 | 1,482 |  |
Equity securities | 8,209 | 12,943 |  |
Net investment in subsidiaries | 554,504 | 514,705 |  |
Other | 195,236 | 198,587 |  |
TOTAL ASSETS | 862,765 | 763,643 |  |
Accounts payable | 1,956 | 1,978 |  |
Accrued liabilities and other | 6,598 | 36,183 |  |
Debt | 0 | 0 |  |
Reclamation | 0 | 0 |  |
Current liabilities | 8,554 | 38,161 |  |
Debt | 367,572 | 227,592 |  |
Reclamation | 0 | 0 |  |
Deferred tax liabilities | 151 | 100 |  |
Other long-term liabilities | 3,643 | 3,629 |  |
Intercompany payable (receivable) | (237,661) | (199,318) |  |
Non-current liabilities | 133,705 | 32,003 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,469,002 issued and outstanding at March 31, 2021 and 243,751,283 at December 31, 2020 | 2,435 | 2,438 |  |
Additional paid-in capital | 3,610,631 | 3,610,297 |  |
Accumulated deficit | (2,906,060) | (2,908,120) |  |
Accumulated other comprehensive income (loss) | 13,500 | (11,136) |  |
Stockholders' equity | 720,506 | 693,479 |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 862,765 | 763,643 |  |
Guarantor Subsidiaries |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 33,008 | 28,515 |  |
Receivables | 5,431 | 3,631 |  |
Ore on leach pads | 78,689 | 74,866 |  |
Inventory | 27,526 | 27,223 |  |
Prepaid expenses and other | 854 | 1,375 |  |
Current assets | 145,508 | 135,610 |  |
Property, plant and equipment, net | 156,359 | 148,640 |  |
Mining properties, net | 373,135 | 353,818 |  |
Ore on leach pads | 87,723 | 81,963 |  |
Restricted assets | 206 | 206 |  |
Equity securities | 0 | 0 |  |
Net investment in subsidiaries | 69,106 | 72,785 |  |
Other | 54,160 | 51,528 |  |
TOTAL ASSETS | 886,197 | 844,550 |  |
Accounts payable | 54,978 | 52,177 |  |
Accrued liabilities and other | 34,684 | 46,023 |  |
Debt | 13,709 | 14,506 |  |
Reclamation | 1,584 | 1,584 |  |
Current liabilities | 104,955 | 114,290 |  |
Debt | 35,970 | 33,321 |  |
Reclamation | 94,718 | 93,349 |  |
Deferred tax liabilities | 8,597 | 8,457 |  |
Other long-term liabilities | 27,374 | 29,916 |  |
Intercompany payable (receivable) | 214,056 | 176,914 |  |
Non-current liabilities | 380,715 | 341,957 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,469,002 issued and outstanding at March 31, 2021 and 243,751,283 at December 31, 2020 | 19,356 | 20,401 |  |
Additional paid-in capital | 340,700 | 340,700 |  |
Accumulated deficit | 40,471 | 27,202 |  |
Accumulated other comprehensive income (loss) | 0 | 0 |  |
Stockholders' equity | 400,527 | 388,303 |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | $ 886,197 | $ 844,550 |  |

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