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Earnings per Share
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
19. Earnings per Share

The following table sets forth a reconciliation of the information used in computing basic and diluted earnings per share:
  Years Ended December 31, 
  2018 2017 2016
Earnings from continuing operations $591,145 $746,663 $502,128 
(Loss) earnings from discontinued operations, net(20,878)65,002 6,764 
Net earnings$570,267 $811,665 $508,892 
Basic earnings per common share: 
Earnings from continuing operations $3.94 $4.80 $3.23 
(Loss) earnings from discontinued operations, net$(0.14)$0.42 $0.04 
Net earnings$3.80 $5.21 $3.28 
Weighted average basic shares outstanding149,874,000 155,685,000 155,231,000 
Diluted earnings per common share: 
Earnings from continuing operations $3.89 $4.73 $3.21 
(Loss) earnings from discontinued operations, net$(0.14)$0.41 $0.04 
Net earnings$3.75 $5.15 $3.25 
Weighted average diluted shares outstanding152,133,000 157,744,000 156,636,000 
 
The following table is a reconciliation of the share amounts used in computing earnings per share:
  Years Ended December 31, 
  2018 2017 2016
Weighted average shares outstanding - Basic 149,874,000 155,685,000 155,231,000 
Dilutive effect of assumed exercise of SARs and vesting of performance shares and RSUs2,259,000 2,059,000 1,405,000 
Weighted average shares outstanding - Diluted 152,133,000 157,744,000 156,636,000 
Diluted earnings per share amounts are computed using the weighted average number of common shares outstanding and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of SARs and vesting of performance shares and RSUs, as determined using the treasury stock method. For the years ended December 31, 2018, 2017 and 2016, the weighted average number of anti-dilutive potential common shares excluded from the calculation above totaled 1,382, 79,756 and 6,799, respectively.