Earnings Per Share Level 3 (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

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