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Earnings Per Share
9 Months Ended
Sep. 30, 2015
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]  
Earnings Per Share [Text Block]
3. EARNINGS PER SHARE

Basic earnings per share are computed using net income and the weighted average number of common shares outstanding for each period presented. Diluted earnings per share are computed in the same manner, except it uses the weighted average number of common shares outstanding plus the effects of the assumed exercise of stock options and the payment of estimated stock awards from other stock-based compensation plans that are outstanding at the end of each period presented. Antidilutive stock options are excluded from the calculation of diluted earnings per common share. Diluted earnings (loss) per share are calculated as follows:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 30,
 
September 30,
In thousands, except per share data
 
2015
 
2014
 
2015
 
2014
Net income (loss)
 
$
(6,685
)
 
$
(8,733
)
 
$
23,998

 
$
30,222

Average common shares outstanding - basic
 
27,363

 
27,189

 
27,336

 
27,145

Additional shares for stock-based compensation plans outstanding
 

 

 
63

 
50

Average common shares outstanding - diluted
 
27,363

 
27,189

 
27,399

 
27,195

Earnings (loss) per share of common stock - basic
 
$
(0.24
)
 
$
(0.32
)
 
$
0.88

 
$
1.11

Earnings (loss) per share of common stock - diluted
 
$
(0.24
)
 
$
(0.32
)
 
$
0.88

 
$
1.11

Additional information:
 
 
 
 
 
 
 
 
Antidilutive shares
 
91

 
80

 
19

 
24