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Earnings Per Share Level 1 (Notes)
 6 Months Ended
Jun. 30, 2011
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings Per Share
Basic earnings per common share (EPS) excludes dilution and is computed by dividing Net income attributable to common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other obligations to issue common stock were exercised or converted into common stock or resulted in the issuance of common shares that then shared in our earnings.
A reconciliation of the numerators and denominators of the basic and diluted EPS computations is presented below:
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2011
 
2010
 
2011
 
2010
 
(In thousands, except per
share amounts)
 
(In thousands, except per
share amounts)
Amounts attributable to common stockholders:
 
 
 
 
 
 
 
Net income:
 
 
 
 
 
 
 
Net income — basic
$
26,093


 
$
40,285


 
$
64,857


 
$
71,197


After tax interest on convertible debt
13


 
13


 
25


 
25


Net income — diluted
$
26,106


 
$
40,298


 
$
64,882


 
$
71,222


Weighted average shares (denominator):
 
 
 
 
 
 
 
Weighted average shares — basic
238,498


 
251,763


 
239,131


 
253,074


Stock options
2,816


 
1,699


 
2,337


 
1,667


Convertible debt
121


 
121


 
121


 
121


Weighted average shares — diluted
241,435


 
253,583


 
241,589


 
254,862


Net income per share:
 
 
 
 
 
 
 
Basic
$
0.11


 
$
0.16


 
$
0.27


 
$
0.28


Diluted
$
0.11


 
$
0.16


 
$
0.27


 
$
0.28




The computation of diluted EPS excludes outstanding stock options and convertible debt in certain periods in which the inclusion of such options and debt would be anti-dilutive in the periods presented. For the three months ended June 30, 2011 and June 30, 2010, total options and convertible debentures not currently included in the computation of dilutive EPS were 3.1 million and 5.7 million, respectively. For the six months ended June 30, 2011 and June 30, 2010, total options and convertible debentures not currently included in the computation of dilutive EPS were 5.4 million and 5.2 million, respectively.