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PER SHARE OF COMMON STOCK (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Net Income (Loss) Per Share
The calculation of basic and diluted net income per share is determined using net income applicable to common stockholders as the numerator and the number of shares included in the denominator as follows (in thousands, except per share amounts):
 
 
 
Years Ended December 31,
 
 
 
2013
 
2012
 
2011
 
Basic net income per share
 
 
 
 
 
 
 
 
 
 
Net income applicable to common stockholders
 
$
46,529
 
$
105,631
 
$
15,042
 
Undistributed earnings allocated to participating securities
 
 
(457)
 
 
(904)
 
 
(84)
 
Net income applicable to common stockholders
    excluding amounts applicable to participating securities
 
$
46,072
 
$
104,727
 
$
14,958
 
Weighted average common shares outstanding
 
 
68,460
 
 
68,325
 
 
68,086
 
Basic net income per share
 
$
0.67
 
$
1.53
 
$
0.22
 
 
 
 
 
 
 
 
 
 
 
 
Diluted net income per share:
 
 
 
 
 
 
 
 
 
 
Net income applicable to common stockholders
 
$
46,529
 
$
105,631
 
$
15,042
 
Undistributed earnings allocated to participating securities
 
 
(457)
 
 
(904)
 
 
(84)
 
Net income applicable to common stockholders excluding
    amounts applicable to participating securities
 
$
46,072
 
$
104,727
 
$
14,958
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average common shares outstanding
 
 
68,460
 
 
68,325
 
 
68,086
 
Dilutive shares from assumed conversion of convertible senior
    notes
 
 
63
 
 
-
 
 
-
 
Dilutive stock options and restricted stock
 
 
558
 
 
239
 
 
332
 
Diluted weighted average common shares outstanding
 
 
69,081
 
 
68,564
 
 
68,418
 
Diluted net income per share
 
$
0.67
 
$
1.53
 
$
0.22