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v3.3.1.900

Fair Value Measurements (Details Textual) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) $ / oz | Dec. 31, 2014 USD ($) $ / oz | Dec. 31, 2013 USD ($) $ / oz | Jan. 29, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Write-downs | $ 313,337 | $ 1,472,721 | $ 772,993 |
Impairment of Long-Lived Assets Held-for-use, Net of Tax | $ 276,500 | $ 1,021,800 | $ 593,200 |
Long-Lived Assets, Impairment Testing, Commodity, Silver, Price per Ounce | $ / oz | 17.50 | 19.00 | 25.00 |
Long-Lived Assets, Impairment Testing, Commodity, Gold, Price per Ounce | $ / oz | 1,200 | 1,275 | 1,450 |
Rochester [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Expected Royalty Duration | 2.5 |  |  |
Palmarejo [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Expected Royalty Duration | 0.7 |  |  |
Convertible Senior Notes Due March 2028 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% | 3.25% |  |
Senior Notes due 2021 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.875% | 7.875% |  | 7.875%
Senior Notes due 2021 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net | $ 5,300 | $ 7,300 |  |
Minimum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 7.50% |  |  |
Maximum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 11.00% |  |  |
Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member] | Property, Plant and Equipment, Other Types [Member] | Minimum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 7.50% | 8.00% | 8.50% |
Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member] | Property, Plant and Equipment, Other Types [Member] | Maximum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 11.00% | 10.75% | 10.50% |
Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member] | Other Mining Properties [Member] | Minimum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 7.50% | 8.00% | 8.50% |
Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member] | Other Mining Properties [Member] | Maximum [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 11.00% | 10.75% | 10.50% |

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