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Earnings per common share
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
Earnings per common share
Earnings (loss) per common share
Basic earnings (loss) per common share were computed by dividing earnings (loss) 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. Diluted loss per common share for the three months ended September 30, 2012, was computed by dividing the loss on common stock by the weighted average number of shares of common stock outstanding during the applicable period. Due to the loss on common stock for the three months ended September 30, 2012, the effect of outstanding performance share awards was excluded from the computation of diluted loss per common share as their effect was antidilutive. Common stock outstanding includes issued shares less shares held in treasury. Net income (loss) was the same for both the basic and diluted earnings (loss) per share calculations. A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings (loss) per share calculation was as follows:
 
Three Months Ended
Nine Months Ended
 
September 30,
September 30,
 
2012

2011

2012

2011

 
(In thousands)
Weighted average common shares outstanding - basic
188,831

188,794

188,824

188,753

Effect of dilutive stock options and performance share awards

3

205

7

Weighted average common shares outstanding - diluted
188,831

188,797

189,029

188,760

Shares excluded from the calculation of diluted earnings per share
434