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Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2016
Business Acquisition [Line Items] |
Business Acquisition, Pro Forma Information | The following unaudited pro forma financial information is presented for informational purposes only and is not necessarily indicative of the results of operations as they would have been had the transaction occurred on the assumed date, nor is it necessarily an indication of trends in future results for a number of reasons, including, but not limited to, differences between the assumptions used to prepare the pro forma information, potential synergies, and cost savings from operating efficiencies.
In thousands | 2016 |  | 2015 (Pro Forma) |  | 2014 (Pro Forma)
Revenue | $ | 665,777 |  |  | $ | 664,086 |  |  | $ | 729,742 |
Income (loss) before income and mining taxes | 1,113 |  |  | (393,498 | ) |  | (1,587,128 | )
Net income (loss) | 55,352 |  |  | (367,235 | ) |  | (1,158,874 | )
Paramount Gold and Silver Corp. [Member] |
Business Acquisition [Line Items] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | The purchase price and acquired assets and liabilities were as follows (in thousands except share data):
Common shares issued (32,667,327 at $5.78) | $ | 188,817 |
Cash | 8,530 |
Transaction advisory fees and other acquisition costs | 4,020 |
Total purchase price | 201,367 |
Total assets acquired | 307,193 |
Total liabilities assumed | 105,826 |
Net assets acquired | $ | 201,367 |
Wharf Gold Mine [Member] |
Business Acquisition [Line Items] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | The purchase price allocation was based on the fair value of acquired assets and liabilities as follows (in thousands):
Total assets acquired | 133,269 |
Total liabilities assumed | 33,873 |
Net assets acquired | $ | 99,396 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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