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Earnings (loss) Per Common Share
 6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Earnings (loss) Per Common Share
Earnings Per Common Share
The following table presents a reconciliation of the numerators and denominators of the basic income per share and diluted income per share computations (amounts in thousands, except per share data):
 
 
Three months ended June 30,
 
Six months ended June 30,
 
2013
 
2012
 
2013
 
2012
Basic
 
 
 
 
 
 
 
Net income (loss)
$
(25,895
)
 
$
9,685

 
$
(27,187
)
 
$
23,857

Weighted-average shares
62,177

 
61,768

 
62,073

 
61,673

Income (loss) per share
$
(0.42
)
 
$
0.16

 
$
(0.44
)
 
$
0.39

Diluted
 
 
 
 
 
 
 
Net income (loss)
$
(25,895
)
 
$
9,685

 
$
(27,187
)
 
$
23,857

Weighted average shares:
 
 
 
 
 
 
 
Outstanding
62,177

 
61,768

 
62,073

 
61,673

Diluted effect of stock options, restricted stock,
and restricted stock unit awards
—

 
852

 
—

 
951

 
62,177

 
62,620

 
62,073

 
62,624

Income (loss) per share
$
(0.42
)
 
$
0.15

 
$
(0.44
)
 
$
0.38


Potentially dilutive stock options, restricted stock and restricted stock unit awards representing a total of 5,584,899 and 5,461,022 shares of common stock for the three and six months ended June 30, 2013, respectively, and 4,416,886 and 4,309,528 for the three and six months ended June 30, 2012, respectively, were excluded from the computation of diluted weighted average shares outstanding due to their antidilutive effect.