Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share (Tables) [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Numerator:
Amounts attributable to common stockholders:
Income from continuing operations	$	76,533		$	112,339		$	315,494		$	302,095
Income from discontinued operations	—			60,428			19,332			57,911
Net income (numerator for diluted EPS)	76,533			172,767			334,826			360,006
Less: Preference stock dividend	(12		)	(15		)	(38		)	(44		)
Income attributable to common stockholders (numerator for basic EPS)	$	76,521		$	172,752		$	334,788		$	359,962
Denominator (in thousands):
Weighted-average shares used in basic EPS	200,593			201,294			200,266			202,664
Effect of dilutive shares:
Preferred stock	2			2			2			2
Preference stock	399			447			399			451
Stock plans	608			451			458			366
Weighted-average shares used in diluted EPS	201,602			202,194			201,125			203,483
Basic earnings per share:
Income from continuing operations	$	0.38		$	0.56		$	1.58		$	1.49
Income from discontinued operations	—			0.30			0.10			0.29
Net income	$	0.38		$	0.86		$	1.67		$	1.78
Diluted earnings per share:
Income from continuing operations	$	0.38		$	0.56		$	1.57		$	1.48
Income from discontinued operations	—			0.30			0.10			0.28
Net income	$	0.38		$	0.85		$	1.66		$	1.77
Anti-dilutive shares not used in calculating diluted weighted-average shares (in thousands):	13,607			15,442			14,391			15,435