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v3.7.0.1

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Sales of products | $ 142,544 | $ 131,017
Cost of sales and other direct production costs | 78,676 | 74,320
Depreciation, depletion and amortization | 28,952 | 25,875
Total cost of sales | 107,628 | 100,195
Gross profit | 34,916 | 30,822
Other operating expenses: |  |
General and administrative | 9,206 | 10,214
Exploration | 4,514 | 2,950
Pre-development | 1,252 | 404
Research and development | 683 |
Other operating expense | 690 | 640
Lucky Friday suspension-related costs | 1,581 |
Provision for closed operations and environmental matters | 1,119 | 1,041
Total other operating expense | 19,045 | 15,249
Income from operations | 15,871 | 15,573
Other income (expense): |  |
Loss on disposal of investments | (167) |
Unrealized income (loss) on investments | 327 | (711)
Loss on derivative contracts | (7,809) |
Net foreign exchange loss | (2,262) | (8,203)
Interest and other income | 325 | 88
Interest expense, net of amounts capitalized | (8,522) | (5,711)
Total other expense | (18,108) | (14,537)
(Loss) income before income taxes | (2,237) | 1,036
Income tax benefit (provision) | 29,071 | (1,654)
Net income (loss) | 26,834 | (618)
Preferred stock dividends | (138) | (138)
Income (loss) applicable to common stockholders | 26,696 | (756)
Comprehensive income: |  |
Net income (loss) | 26,834 | (618)
Reclassification of disposal and impairment of investments included in net income | 167 | 1,000
Unrealized holding (losses) gains on investments | (256) | 65
Unrealized gain (loss) and amortization of prior service on pension plans | 32 |
Change in fair value of derivative contracts designated as hedge transactions | 3,261 |
Comprehensive income | $ 30,038 | $ 447
Basic income per common share after preferred dividends (in dollars per share) | $ 70 |
Diluted income per common share after preferred dividends (in dollars per share) | $ 70 |
Weighted average number of common shares outstanding - basic (in shares) | 395,370 | 379,022
Weighted average number of common shares outstanding - diluted (in shares) | 398,149 | 379,022

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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