Earnings Per Share Level 1 (Notes)

12 Months Ended

Dec. 31, 2012

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 stock that shared in our earnings.

A reconciliation of the numerators and denominators of the basic and diluted EPS for the three years ended December 31 is presented below:

	2012		2011		2010
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income:
Net income — basic	$	152,546	$	144,903	$	126,417
After tax interest on convertible debt	51		51		51
Net income — diluted	$	152,597	$	144,954	$	126,468
Weighted average shares:
Weighted average shares — basic	215,712		234,242		248,871
Stock options	3,233		2,306		1,610
Convertible debt	121		121		121
Weighted average shares — diluted	219,066		236,669		250,602
Net income per share:
Basic	$	0.71	$	0.62	$	0.51
Diluted	$	0.70	$	0.61	$	0.50

The computation of diluted earnings per share excludes outstanding stock options and convertible debt in certain periods in which the inclusion of such options and debt would be antidilutive to the periods presented. Total options not currently included in the computation of diluted EPS in shares are 1.3 million, 4.9 million, and 4.8 million for the years ended December 31, 2012, 2011, and 2010, respectively.