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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Statement of Comprehensive Income [Abstract] |  |  |  |
Revenues |  | $ 665,777 | $ 646,086 | $ 635,742
COSTS AND EXPENSES |  |  |  |
Costs applicable to sales | [1] | 409,541 | 479,654 | 477,945
Amortization |  | 123,161 | 143,751 | 162,436
General and administrative |  | 29,376 | 32,834 | 40,845
Exploration |  | 12,930 | 11,647 | 21,740
Write-downs |  | 4,446 | 313,337 | 1,472,721
Pre-development, reclamation, and other |  | 17,219 | 17,793 | 26,037
Total costs and expenses |  | 596,673 | 999,016 | 2,201,724
OTHER INCOME (EXPENSE), NET |  |  |  |
Gains (Losses) on Extinguishment of Debt |  | (21,365) | 15,916 | 0
Fair value adjustments, net |  | (11,581) | 5,202 | 3,618
Interest expense, net of capitalized interest |  | (36,920) | (45,703) | (47,546)
Other, net |  | 1,875 | (15,931) | (5,218)
Total other income (expense), net |  | (67,991) | (40,516) | (49,146)
Income (loss) before income and mining taxes |  | 1,113 | (393,446) | (1,615,128)
Income and mining tax benefit (expense) |  | 54,239 | 26,263 | 428,254
NET INCOME (LOSS) |  | 55,352 | (367,183) | (1,186,874)
OTHER COMPREHENSIVE INCOME (LOSS), Net of Tax: |  |  |  |
Unrealized gain (loss) on equity securities, net of tax of $(767) and $1,446 for the years ended December 31, 2016, and 2014, respectively |  | 3,222 | (4,154) | (2,290)
Reclassification adjustments for impairment of equity securities, net of tax of $(2,552) for the year ended December 31, 2014 |  | 703 | 2,346 | 4,042
Reclassification adjustments for realized (gain) loss on sale of equity securities, net of tax of $(219) for the year ended December 31, 2014 |  | (2,691) | 894 | 346
Other comprehensive income (loss) |  | 1,234 | (914) | 2,098
COMPREHENSIVE INCOME (LOSS) |  | $ 56,586 | $ (368,097) | $ (1,184,776)
NET INCOME (LOSS) PER SHARE |  |  |  |
Basic (in dollars per share) |  | $ 0.35 | $ (2.83) | $ (11.59)
Diluted (in dollars per share) |  | $ 0.34 | $ (2.83) | $ (11.59)
[1] | Excludes amortization.

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831223 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 + Details
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