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Earnings Per Share
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Earnings Per Share
Note 14
Earnings (Loss) Per Share
Basic net income (loss) per share (EPS) is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted EPS is computed by dividing net income (loss) by the weighted average number of common and dilutive potential common shares outstanding during the period. Basic and diluted EPS (in thousands, except per share amounts):
 
 
Quarters Ended
June 30,
 
Six Months Ended
June 30,
 
2015
 
2014
 
2015
 
2014
Net income (loss)
$
(27,781
)
 
$
(21,029
)
 
$
(52,250
)
 
$
(28,799
)
 
 
 
 
 
 
 
 
Weighted average common shares outstanding used to compute basic EPS
36,106

 
35,890

 
36,105

 
35,865

Dilutive effect of stock based awards
—

 
—

 
—

 
—

Weighted average common shares outstanding used to compute diluted EPS
36,106

 
35,890


36,105


35,865

 
 
 
 
 
 
 
 
Basic EPS
$
(0.77
)
 
$
(0.59
)
 
$
(1.45
)
 
$
(0.80
)
Diluted EPS
$
(0.77
)
 
$
(0.59
)
 
$
(1.45
)
 
$
(0.80
)

During the quarter and six months ended June 30, 2015, 6.0 million and 6.1 million shares of common stock, respectively, of potentially issuable shares from stock awards were excluded from the calculation of diluted EPS because of their antidilutive effect.
During the quarter and six months ended June 30, 2014, 6.3 million and 6.2 million shares of common stock, respectively, of potentially issuable shares from stock awards were excluded from the calculation of diluted EPS because of their antidilutive effect.