XML 14 R48.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Computation Of Basic And Diluted Earnings Per Share

 

 

 

 

 

 

 

 

 

Three Months Ended March 31,

 

2013

 

2012

 

 

 

 

 

 

Net income

$
14,619 

 

$
34,773 

Shares for basic and diluted calculations:

 

 

 

 

 

Average shares used in basic computation

 
60,054 

 

 
53,243 

Dilutive effect of stock options and units

 
9,135 

 

 
9,426 

Average shares used in diluted computation:

 
69,189 

 

 
62,669 

Net income per share:

 

 

 

 

 

Basic

$
0.24 

 

$
0.65 

Diluted

$
0.21 

 

$
0.55 

 

(1)  Diluted earnings per share is computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include stock options and units.