Basic and Diluted Earnings per Share

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Basic and Diluted Earnings per Share

Basic and Diluted Earnings per Share

The following table reconciles the numerator and the denominator of the basic and diluted per share computations for earnings attributable to shareholders per share:

	Three months ended
	June 30,
(Amounts in thousands, except share and per share amounts)	Net earnings attributable to shareholders		Weighted average shares	Earnings per share
2012
Basic earnings attributable to shareholders	$	83,955	211,724,082	$	.40
Effect of dilutive potential common shares	—		1,488,830	—
Diluted earnings attributable to shareholders	$	83,955	213,212,912	$	.39
2011
Basic earnings attributable to shareholders	$	95,000	212,136,164	$	.45
Effect of dilutive potential common shares	—		3,522,879	—
Diluted earnings attributable to shareholders	$	95,000	215,659,043	$	.44

	Six months ended
	June 30,
(Amounts in thousands, except share and per share amounts)	Net earnings attributable to shareholders		Weighted average shares	Earnings per share
2012
Basic earnings attributable to shareholders	$	160,662	211,910,872	$	.76
Effect of dilutive potential common shares	—		1,772,715	—
Diluted earnings attributable to shareholders	$	160,662	213,683,587	$	.75
2011
Basic earnings attributable to shareholders	$	186,232	212,112,643	$	.88
Effect of dilutive potential common shares	—		3,667,587	—
Diluted earnings attributable to shareholders	$	186,232	215,780,230	$	.86

The following shares have been excluded from the computation of diluted earnings per share because the effect would have been antidilutive:

	Three months ended		Six months ended
	June 30,		June 30,
	2012	2011	2012	2011
Shares	15,444,641	7,413,458	15,427,041	7,415,063