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EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Year Ended December 31,
	2016				2015				2014
(In thousands, except per share data)
Net income attributable to WESCO International	$	101,588			$	210,687			$	275,906
Weighted-average common shares outstanding used in computing basic earnings per share	44,116				43,433				44,440
Common shares issuable upon exercise of dilutive equity awards	543				626				997
Common shares issuable from contingently convertible debentures (see below for basis of calculation)	3,674				6,314				7,821
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share	48,333				50,373				53,258
Earnings per share attributable to WESCO International
Basic	$	2.30			$	4.85			$	6.21
Diluted	$	2.10			$	4.18			$	5.18

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- References

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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/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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