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EARNINGS PER SHARE (Tables)
6 Months Ended
Jun. 30, 2012
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per share computations
The following is a reconciliation of basic and diluted earnings per share computations (in thousands except for per share amounts):
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2012
 
2011
 
2012
 
2011
Numerator for basic and diluted earnings per share:
 
 

 
 

 
 

 
 

Net Income
 
$
23,426

 
$
29,156

 
$
55,441

 
$
51,886

 
 
 
 
 
 
 
 
 
Denominator:
 
 

 
 

 
 

 
 

Basic shares outstanding
 
53,308

 
52,939

 
53,268

 
52,869

Dilutive effect of equity-based compensation awards
 
197

 
423

 
229

 
392

Dilutive shares outstanding
 
53,505

 
53,362

 
53,497

 
53,261

 
 
 
 
 
 
 
 
 
Basic earnings per share:
 
$
0.44

 
$
0.55

 
$
1.04

 
$
0.98

 
 
 

 
 

 
 

 
 

Diluted earnings per share:
 
$
0.44

 
$
0.55

 
$
1.04

 
$
0.97