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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table sets forth the details of basic and diluted earnings per share:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
(In thousands, except per share data) |  |  |  |  |
Net income attributable to WESCO International, Inc. | $ | 100,560 |  |  | $ | 223,426 |  |  | $ | 227,343 |
Less: Preferred stock dividends | 30,139 |  |  | — |  |  | — |
Net income attributable to common stockholders | $ | 70,421 |  |  | $ | 223,426 |  |  | $ | 227,343 |
Weighted-average common shares outstanding used in computing basic earnings per share | 46,174 |  |  | 43,104 |  |  | 46,722 |
Common shares issuable upon exercise of dilutive equity awards | 451 |  |  | 383 |  |  | 477 |
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share | 46,625 |  |  | 43,487 |  |  | 47,199 |
Earnings per share attributable to common stockholders |  |  |  |  |
Basic | $ | 1.53 |  |  | $ | 5.18 |  |  | $ | 4.87 |
Diluted | $ | 1.51 |  |  | $ | 5.14 |  |  | $ | 4.82 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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