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Other, Net (Tables) | 6 Months Ended
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Jun. 30, 2017
Other Income and Expenses [Abstract] |
Schedule of Other Operating Cost and Expense, by Component | Other, net consists of the following:
| Three months ended June 30, |  | Six months ended June 30,
In thousands | 2017 |  | 2016 |  | 2017 |  | 2016
Foreign exchange gain (loss) | $ | 1,000 |  |  | $ | (5,656 | ) |  | $ | 2,442 |  |  | $ | (5,819 | )
Gain (loss) on sale of assets and investments | 513 |  |  | 3,126 |  |  | (1,552 | ) |  | 4,211 |
Gain on sale of the Joaquin project | — |  |  | — |  |  | 21,138 |  |  | — |
Gain on repurchase of the Rochester royalty obligation | 2,332 |  |  | — |  |  | 2,332 |  |  | — |
Impairment of equity securities | (305 | ) |  | (20 | ) |  | (426 | ) |  | (20 | )
Other | 596 |  |  | 693 |  |  | 1,341 |  |  | 1,085 |
Other, net | $ | 4,136 |  |  | $ | (1,857 | ) |  | $ | 25,275 |  |  | $ | (543 | )

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- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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