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v3.3.1.900

Acquisitions (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Apr. 17, 2015 | Feb. 20, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Business Acquisition [Line Items] |  |  |  |  |
Revenue |  |  | $ 646,086 | $ 635,742 | $ 745,994
Common stock issued for the acquisition of Paramount Gold and Silver Corp. (in shares) |  |  | 32,667,327 |  |
Stock Issued During Period, Value, Acquisitions (in dollars per share) |  |  | $ 5.78 |  |
Assets acquired: |  |  |  |  |
Receivables |  |  | $ 110,760 | 129,609 |
Ore on leach pads |  |  | 67,329 | 48,204 |
Property, Plant and Equipment, Net |  |  | 195,999 | 227,911 |
Mining properties, net |  |  | 589,219 | 501,192 |
Business Acquisition, Pro Forma Information [Abstract] |  |  |  |  |
Net income (loss) |  |  | (367,183) | (1,186,874) | (650,563)
Paramount Gold and Silver Corp. [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Common shares issued | $ 188,817 |  |  |  |
Cash | 8,530 |  |  |  |
Transaction advisory fees and other acquisition costs | 4,020 |  |  |  |
Total purchase price | 201,367 |  |  |  |
Assets acquired: |  |  |  |  |
Cash and cash equivalents | 118 |  |  |  |
Other current assets | 1,685 |  |  |  |
Property, plant, and equipment, net | 215 |  |  |  |
Mining properties, net | 305,175 |  |  |  |
Assets | 307,193 |  |  |  |
Liabilities: |  |  |  |  |
Accounts payable and accrued liabilities | 2,737 |  |  |  |
Deferred income taxes | 103,089 |  |  |  |
Liabilities | 105,826 |  |  |  |
Net assets acquired | $ 201,367 |  |  |  |
Wharf Gold Mine [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash |  | $ 99,400 |  |  |
Transaction advisory fees and other acquisition costs |  |  | 2,100 |  |
Assets acquired: |  |  |  |  |
Other current assets |  | 2,924 |  |  |
Cash |  | 982 |  |  |
Receivables |  | 3,061 |  |  |
Inventory |  | 2,147 |  |  |
Ore on leach pads |  | 12,710 |  |  |
Property, Plant and Equipment, Net |  | 30,055 |  |  |
Mining properties, net |  | 77,424 |  |  |
Other non-current assets |  | 3,966 |  |  |
Assets |  | 133,269 |  |  |
Liabilities: |  |  |  |  |
Accounts payable and accrued liabilities |  | 5,938 |  |  |
Deferred income taxes |  | 5,915 |  |  |
Reclamation |  | 18,270 |  |  |
Other non-current liabilities |  | 3,750 |  |  |
Liabilities |  | 33,873 |  |  |
Net assets acquired |  | $ 99,396 |  |  |
Business Acquisition, Pro Forma Information [Abstract] |  |  |  |  |
Revenue |  |  | 664,086 | 729,742 | 823,994
Income (loss) before income and mining taxes |  |  | (393,498) | (1,587,128) | (786,679)
Net income (loss) |  |  | $ (367,235) | $ (1,158,874) | $ (628,563)

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