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Earnings Per Share
 9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
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. The diluted earnings per share calculation also includes 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. Diluted earnings per share are calculated as follows:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 30,
 
September 30,
In thousands, except per share data
 
2014
 
2013
 
2014
 
2013
Net income (loss)
 
$
(8,733
)
 
$
(8,233
)
 
$
30,222

 
$
31,532

Average common shares outstanding - basic
 
27,189

 
26,987

 
27,145

 
26,962

Additional shares for stock-based compensation plans outstanding
 
—

 
—

 
50

 
51

Average common shares outstanding - diluted
 
27,189

 
26,987

 
27,195

 
27,013

Earnings (loss) per share of common stock - basic
 
$
(0.32
)
 
$
(0.31
)
 
$
1.11

 
$
1.17

Earnings (loss) per share of common stock - diluted
 
$
(0.32
)
 
$
(0.31
)
 
$
1.11

 
$
1.17

Additional information:
 
 
 
 
 
 
 
 
Antidilutive shares excluded from net income per diluted common share calculation
 
80

 
80

 
24

 
26