XML 44 R33.htm IDEA: XBRL DOCUMENT v3.7.0.1
SCHEDULE OF EARNINGS PER SHARE, BASIC AND DILUTED (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Earnings Per Share [Abstract]        
Net income (loss) attributable to WESCO International, Inc. $ 49,510 $ 49,798 $ 87,238 $ 85,852
Weighted average common shares outstanding used in computing basic earnings per share (in shares) 48,294 42,238 48,499 42,224
Common shares issuable upon exercise of dilutive stock options (in shares) 482 569 582 494
Common shares issuable from contingently convertible debentures (in shares) 0 5,820 0 5,120
Weighted average common shares outstanding and common share equivalents used in computing diluted earnings per share (in shares) 48,776 48,627 49,081 47,838
Earnings Per Share, Basic and Diluted [Abstract]        
Basic (in dollars per share) $ 1.03 $ 1.18 $ 1.80 $ 2.03
Diluted (in dollars per share) $ 1.02 $ 1.02 $ 1.78 $ 1.79