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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Revenues from continuing operations: |  |
Service revenues | $ 351,010 | $ 551,155
Product revenues | 161,689 | 164,240
Total revenues | 512,699 | 715,395
Costs and expenses from continuing operations: |  |
Cost of services sold | 293,999 | 443,396
Cost of products sold | 115,466 | 120,862
Selling, general and administrative expenses | 66,794 | 124,698
Research and development expenses | 2,619 | 2,196
Loss on disposal of the Harsco Infrastructure Segment and transaction costs | 2,138 | 0
Other income | (656) | (1,542)
Total costs and expenses | 480,360 | 689,610
Operating income from continuing operations | 32,339 | 25,785
Interest income | 297 | 406
Interest expense | (11,421) | (11,743)
Change in fair value to unit adjustment liability | (2,546) | 0
Income from continuing operations before income taxes and equity loss | 18,669 | 14,448
Income tax expense | (4,495) | (4,965)
Equity in loss of unconsolidated entities, net | (1,230) | (14)
Income from continuing operations | 12,944 | 9,469
Discontinued operations: |  |
Loss on disposal of discontinued business | (640) | (642)
Income tax benefit related to discontinued business | 237 | 245
Loss from discontinued operations | (403) | (397)
Net income | 12,541 | 9,072
Less: Net income attributable to noncontrolling interests | (1,402) | (1,827)
Net income attributable to Harsco Corporation | 11,139 | 7,245
Amounts attributable to Harsco Corporation common stockholders: |  |
Income from continuing operations, net of tax | 11,542 | 7,642
Loss from discontinued operations | (403) | (397)
Net income attributable to Harsco Corporation | $ 11,139 | $ 7,245
Weighted-average shares of common stock outstanding | 80,816 | 80,706
Basic earnings per common share attributable to Harsco Corporation common stockholders: |  |
Continuing operations | $ 0.14 | $ 0.09
Discontinued operations | $ 0.00 | $ 0.00
Basic earnings per share attributable to Harsco Corporation common stockholders | $ 0.14 | $ 0.09
Diluted weighted-average shares of common stock outstanding | 81,022 | 80,930
Diluted earnings per common share attributable to Harsco Corporation common stockholders: |  |
Continuing operations | $ 0.14 | $ 0.09
Discontinued operations | $ 0.00 | $ 0.00
Diluted earnings per share attributable to Harsco Corporation common stockholders | $ 0.14 | $ 0.09
Cash dividends declared per common share | $ 0.205 | $ 0.205

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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 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: 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 + Details
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