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EARNINGS PER SHARE
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
EARNINGS PER SHARE
The following are computations of basic and diluted earnings per share (in thousands except for per share amounts):
 
Years Ended December 31,
 
2013
 
2012
 
2011
Numerator for basic and diluted earnings per share:
 
 
 
 
 
Net income
$
95,566

 
$
129,674

 
$
127,252

Denominator:
 
 
 
 
 
  Basic shares outstanding
60,574

 
53,884

 
52,961

  Dilutive effect of equity-based compensation awards
154

 
195

 
363

  Dilutive shares outstanding
60,728

 
54,079

 
53,324


 
 
 
 
 
Basic earnings per share
$
1.58

 
$
2.41

 
$
2.40

Diluted earnings per share
$
1.57

 
$
2.40

 
$
2.39


For the years ended December 31, 2013 and 2012, the dilutive effect of all then outstanding options, restricted stock and performance stock awards is included in the calculations above except for 109,861 and 65,336 outstanding performance stock awards, respectively, for which the performance criteria were not attained at that time. For the year ended December 31, 2011, there were no anti-dilutive securities.