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Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | $ 52,895 | $ 55,645 |  |
Receivables | 19,722 | 18,666 |  |
Ore on leach pads | 83,035 | 66,192 |  |
Inventory | 51,857 | 55,886 |  |
Prepaid expenses and other | 14,150 | 14,047 |  |
Current assets | 221,659 | 210,436 |  |
Property, plant and equipment, net | 242,018 | 248,789 |  |
Mining properties, net | 702,960 | 711,955 |  |
Ore on leach pads | 66,703 | 71,539 |  |
Restricted assets | 8,123 | 8,752 |  |
Equity and debt securities | 26,826 | 35,646 |  |
Receivables | 23,149 | 28,709 |  |
Net investment in subsidiaries | 0 | 0 |  |
Other | 57,659 | 62,810 |  |
TOTAL ASSETS | 1,349,097 | 1,378,636 |  |
Accounts payable | 61,519 | 69,176 |  |
Accrued liabilities and other | 49,935 | 95,616 |  |
Debt | 23,588 | 22,746 |  |
Reclamation | 3,094 | 3,114 |  |
Current liabilities | 138,136 | 190,652 |  |
Debt | 319,521 | 272,751 |  |
Reclamation | 135,436 | 133,417 |  |
Deferred tax liabilities | 36,472 | 41,976 |  |
Other long-term liabilities | 58,888 | 72,836 |  |
Intercompany payable (receivable) | 0 | 0 |  |
Non-current liabilities | 550,317 | 520,980 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,586,226 issued and outstanding at March 31, 2020 and 241,529,021 at December 31, 2019 | 2,436 | 2,415 |  |
Additional paid-in capital | 3,603,785 | 3,598,472 |  |
Accumulated deficit | (2,945,647) | (2,933,747) |  |
Accumulated other comprehensive income (loss) | 70 | (136) |  |
Stockholders' equity | 660,644 | 667,004 | $ 832,335 | $ 852,512
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 1,349,097 | 1,378,636 |  |
Eliminations |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Receivables | 0 | 0 |  |
Ore on leach pads | 0 | 0 |  |
Inventory | 0 | 0 |  |
Prepaid expenses and other | 0 | 0 |  |
Current assets | 0 | 0 |  |
Property, plant and equipment, net | 0 | 0 |  |
Mining properties, net | 0 | 0 |  |
Ore on leach pads | 0 | 0 |  |
Restricted assets | 0 | 0 |  |
Equity and debt securities | 0 | 0 |  |
Receivables | 0 | 0 |  |
Net investment in subsidiaries | (403,016) | (325,738) |  |
Other | (238,523) | (277,448) |  |
TOTAL ASSETS | (641,539) | (603,186) |  |
Accounts payable | 0 | 0 |  |
Accrued liabilities and other | 0 | 0 |  |
Debt | 0 | 0 |  |
Reclamation | 0 | 0 |  |
Current liabilities | 0 | 0 |  |
Debt | (238,523) | (277,448) |  |
Reclamation | 0 | 0 |  |
Deferred tax liabilities | 0 | 0 |  |
Other long-term liabilities | 0 | 0 |  |
Intercompany payable (receivable) | 0 | 0 |  |
Non-current liabilities | (238,523) | (277,448) |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,586,226 issued and outstanding at March 31, 2020 and 241,529,021 at December 31, 2019 | (235,217) | (236,101) |  |
Additional paid-in capital | (2,356,559) | (2,298,162) |  |
Accumulated deficit | 2,188,760 | 2,208,525 |  |
Accumulated other comprehensive income (loss) | 0 | 0 |  |
Stockholders' equity | (403,016) | (325,738) |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | (641,539) | (603,186) |  |
Coeur Mining, Inc. |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 7,594 | 2,985 |  |
Receivables | 0 | (65) |  |
Ore on leach pads | 0 | 0 |  |
Inventory | 0 | 0 |  |
Prepaid expenses and other | 6,649 | 6,202 |  |
Current assets | 14,243 | 9,122 |  |
Property, plant and equipment, net | 2,176 | 2,370 |  |
Mining properties, net | 0 | 4,452 |  |
Ore on leach pads | 0 | 0 |  |
Restricted assets | 1,468 | 1,470 |  |
Equity and debt securities | 26,826 | 35,646 |  |
Receivables | 0 | 0 |  |
Net investment in subsidiaries | 403,171 | 325,723 |  |
Other | 243,008 | 267,281 |  |
TOTAL ASSETS | 690,892 | 646,064 |  |
Accounts payable | 2,070 | 1,277 |  |
Accrued liabilities and other | 9,327 | 9,036 |  |
Debt | 0 | 0 |  |
Reclamation | 0 | 0 |  |
Current liabilities | 11,397 | 10,313 |  |
Debt | 277,062 | 226,885 |  |
Reclamation | 0 | 0 |  |
Deferred tax liabilities | 366 | 50 |  |
Other long-term liabilities | 3,826 | 4,225 |  |
Intercompany payable (receivable) | (262,403) | (262,413) |  |
Non-current liabilities | 18,851 | (31,253) |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,586,226 issued and outstanding at March 31, 2020 and 241,529,021 at December 31, 2019 | 2,436 | 2,415 |  |
Additional paid-in capital | 3,603,785 | 3,598,472 |  |
Accumulated deficit | (2,945,647) | (2,933,747) |  |
Accumulated other comprehensive income (loss) | 70 | (136) |  |
Stockholders' equity | 660,644 | 667,004 |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 690,892 | 646,064 |  |
Guarantor Subsidiaries |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 16,832 | 27,217 |  |
Receivables | 7,014 | 5,978 |  |
Ore on leach pads | 83,035 | 66,192 |  |
Inventory | 24,729 | 24,763 |  |
Prepaid expenses and other | 1,080 | 1,192 |  |
Current assets | 132,690 | 125,342 |  |
Property, plant and equipment, net | 160,632 | 167,159 |  |
Mining properties, net | 327,587 | 327,685 |  |
Ore on leach pads | 66,703 | 71,539 |  |
Restricted assets | 206 | 206 |  |
Equity and debt securities | 0 | 0 |  |
Receivables | 0 | 0 |  |
Net investment in subsidiaries | 82,558 | 85,755 |  |
Other | 50,552 | 52,040 |  |
TOTAL ASSETS | 820,928 | 829,726 |  |
Accounts payable | 26,138 | 26,211 |  |
Accrued liabilities and other | 27,031 | 35,547 |  |
Debt | 15,469 | 15,347 |  |
Reclamation | 1,628 | 1,628 |  |
Current liabilities | 70,266 | 78,733 |  |
Debt | 32,596 | 32,989 |  |
Reclamation | 92,665 | 91,524 |  |
Deferred tax liabilities | 8,190 | 8,104 |  |
Other long-term liabilities | 37,117 | 40,012 |  |
Intercompany payable (receivable) | 244,608 | 246,186 |  |
Non-current liabilities | 415,176 | 418,815 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,586,226 issued and outstanding at March 31, 2020 and 241,529,021 at December 31, 2019 | 20,401 | 20,309 |  |
Additional paid-in capital | 338,479 | 337,975 |  |
Accumulated deficit | (23,394) | (26,106) |  |
Accumulated other comprehensive income (loss) | 0 | 0 |  |
Stockholders' equity | 335,486 | 332,178 |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 820,928 | 829,726 |  |
Non-Guarantor Subsidiaries |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 28,469 | 25,443 |  |
Receivables | 12,708 | 12,753 |  |
Ore on leach pads | 0 | 0 |  |
Inventory | 27,128 | 31,123 |  |
Prepaid expenses and other | 6,421 | 6,653 |  |
Current assets | 74,726 | 75,972 |  |
Property, plant and equipment, net | 79,210 | 79,260 |  |
Mining properties, net | 375,373 | 379,818 |  |
Ore on leach pads | 0 | 0 |  |
Restricted assets | 6,449 | 7,076 |  |
Equity and debt securities | 0 | 0 |  |
Receivables | 23,149 | 28,709 |  |
Net investment in subsidiaries | (82,713) | (85,740) |  |
Other | 2,622 | 20,937 |  |
TOTAL ASSETS | 478,816 | 506,032 |  |
Accounts payable | 33,311 | 41,688 |  |
Accrued liabilities and other | 13,577 | 51,033 |  |
Debt | 8,119 | 7,399 |  |
Reclamation | 1,466 | 1,486 |  |
Current liabilities | 56,473 | 101,606 |  |
Debt | 248,386 | 290,325 |  |
Reclamation | 42,771 | 41,893 |  |
Deferred tax liabilities | 27,916 | 33,822 |  |
Other long-term liabilities | 17,945 | 28,599 |  |
Intercompany payable (receivable) | 17,795 | 16,227 |  |
Non-current liabilities | 354,813 | 410,866 |  |
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 243,586,226 issued and outstanding at March 31, 2020 and 241,529,021 at December 31, 2019 | 214,816 | 215,792 |  |
Additional paid-in capital | 2,018,080 | 1,960,187 |  |
Accumulated deficit | (2,165,366) | (2,182,419) |  |
Accumulated other comprehensive income (loss) | 0 | 0 |  |
Stockholders' equity | 67,530 | (6,440) |  |
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | $ 478,816 | $ 506,032 |  |

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