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CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement [Abstract] |  |  |
Net sales | $ 7,679,021 | $ 7,336,017 | $ 7,518,487
Cost of goods sold (excluding depreciation and amortization below) | 6,194,366 | 5,887,814 | 6,024,826
Selling, general and administrative expense | 1,099,748 | 1,049,286 | 1,054,951
Depreciation and amortization | 64,017 | 66,858 | 64,968
Income from operations | 320,890 | 332,059 | 373,742
Interest expense, net | 68,450 | 76,575 | 69,832
Gain (Loss) on Extinguishment of Debt | 0 | (123,933) | 0
Income before income taxes | 252,440 | 131,551 | 303,910
Provision for income taxes | 89,307 | 30,431 | 95,537
Net income | 163,133 | 101,120 | 208,373
Net loss attributable to noncontrolling interest | (327) | (468) | (2,314)
Net Income attributable to WESCO International, Inc. | 163,460 | 101,588 | 210,687
Comprehensive Income: |  |  |
Foreign currency translation adjustment | 85,762 | 38,275 | (225,795)
Benefit plan adjustments | (6,381) | (2,485) | 4,532
Comprehensive income attributable to WESCO International, Inc. | $ 242,841 | $ 137,378 | $ (10,576)
Earnings per share : |  |  |
Basic | $ 3.42 | $ 2.30 | $ 4.85
Diluted | $ 3.38 | $ 2.10 | $ 4.18

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + 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 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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