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Debt (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 USD ($) oz | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) oz | Sep. 30, 2014 USD ($) | Dec. 31, 2014 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Percentage of Actual Gold Production | 50.00% |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | $ 11,775 |  | $ 11,775 |  | $ 17,498
Debt | 534,211 |  | 534,211 |  | 451,048
Interest expenses incurred for various debt instruments |  |  |  |  |
Interest Paid on Convertible Notes due 2028 | 6 | $ 43 | 49 | $ 130 |
Interest Paid on Senior Notes due 2021 | 8,523 | 8,809 | 25,608 | 24,132 |
Interest paid on short-term credit agreement | 0 | 0 | 326 | 0 |
Interest paid on term loan due 2020 | 2,277 | 0 | 2,425 | 0 |
San Bartolomé Lines of Credit | 101 | 0 | 665 | 0 |
Line of Credit Facility, Commitment Fee Amount | 0 | 0 | 0 | 179 |
Write off revolver costs, interest expense | 0 | 0 | 0 | 3,035 |
Interest Paid on Capital Leases | 229 | 334 | 799 | 726 |
Interest Expense, Debt | 8 | 0 | 8 | 0 |
Accretion of Franco Nevada royalty obligation | 1,642 | 2,545 | 5,444 | 8,639 |
Debt Issuance Cost | 690 | 415 | 1,604 | 1,333 |
Amortization of debt issuance costs | 104 | 107 | 313 | 252 |
Capitalized interest | (926) | (423) | (2,670) | (942) |
Total interest expense, net of capitalized interest | 12,446 | $ 11,616 | 33,945 | $ 36,980 |
San Bartolome Letter of Credit Facility [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Debt | $ 7,419 |  | $ 7,419 |  | $ 10,304
3.25% Convertible Senior Notes due March 2028 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% |  | 3.25% |  | 3.25%
Long term debt and capital lease obligations |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 0
Senior Notes due 2021 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.875% |  | 7.875% |  | 7.875%
Long term debt and capital lease obligations |  |  |  |  |
Debt | $ 426,533 |  | $ 426,533 |  |
Palmarejo gold production royalty [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage | 30.50% |  | 30.50% |  |
Capital Lease Obligations [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Debt | $ 5,990 |  | $ 5,990 |  | $ 13,141
Palmarejo gold production royalty [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Minimum Obligation Paid in Monthly Payments | oz | 4,167 |  | 4,167 |  |
Annual Inflation Compounding Adjustment | 1.00% |  | 1.00% |  |
Short Term Credit Agreement [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | $ 1,000 |  | $ 1,000 |  | 0
Debt | 93,557 |  | 93,557 |  | 0
3.25% Convertible Senior Notes due March 2028 [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | 0 |  | 0 |  | 5,334
Senior Notes due 2021 [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | 0 |  | 0 |  | 0
Capital Lease Obligations [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | 9,052 |  | 9,052 |  | 7,683
San Bartolome Letter of Credit Facility [Member] |  |  |  |  |
Long term debt and capital lease obligations |  |  |  |  |
Current | $ 1,723 |  | $ 1,723 |  | $ 4,481

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