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Net Earnings Per Share
 6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Net Earnings Per Share
Net Earnings Per Share
The following table sets forth the reconciliation of the numerator and denominator utilized in the computation of basic and diluted earnings per share (in thousands):
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2013
 
2012
 
2013
 
2012
Numerator for earnings per share:
 
 
 
 
 
 
 
Earnings from continuing operations
$
50,158

 
$
42,405

 
$
101,794

 
$
91,230

Loss from discontinued operations
—

 
(1,312
)
 
—

 
(1,998
)
Net earnings for basic and diluted earnings per share
$
50,158

 
$
41,093

 
$
101,794

 
$
89,232

 
 
 
 
 
 
 
 
Denominator for earnings per share:
 
 
 
 
 
 
 
Weighted average number of common shares outstanding
142,085

 
153,172

 
143,350

 
153,829

Assumed exercises of stock options and vesting of restricted stock awards, net of shares assumed reacquired under the treasury stock method
1,689

 
1,861

 
1,631

 
2,154

Weighted average diluted shares outstanding
143,774

 
155,033

 
144,981

 
155,983


The effect of stock-based compensation awards for the three and six months ended June 30, 2013, which aggregated 1,102,000 shares and 1,142,000 shares, respectively, and for the three and six months ended June 30, 2012, which aggregated 3,582,000 shares and 3,302,000 shares, respectively, has been excluded for purposes of calculating diluted earnings per share since including such stock-based compensation awards would have been anti-dilutive.