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Earnings (loss) per common share
3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Earnings (loss) per common share
Earnings per common share
Basic earnings per common share were computed by dividing earnings on common stock by the weighted average number of shares of common stock outstanding during the applicable period. Diluted earnings per common share were computed by dividing earnings on common stock by the total of the weighted average number of shares of common stock outstanding during the applicable period, plus the effect of outstanding performance share awards. Common stock outstanding includes issued shares less shares held in treasury. Net income was the same for both the basic and diluted earnings per share calculations. A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculations was as follows:
 
Three Months Ended
 
March 31,
 
2017

2016

 
(In thousands)
Weighted average common shares outstanding - basic
195,304

195,284

Effect of dilutive performance share awards
719


Weighted average common shares outstanding - diluted
196,023

195,284

Shares excluded from the calculation of diluted earnings per share