Basic and Diluted Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2011

Schedule of Calculation of Numerator and Denominator in 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
	September 30,
(Amounts in thousands, except share and per share amounts)	Net earnings attributable to shareholders		Weighted average shares	Earnings per share
2011
Basic earnings attributable to shareholders	$	106,604	212,256,119	$	.50
Effect of dilutive potential common shares	—		2,461,332	—
Diluted earnings attributable to shareholders	$	106,604	214,717,451	$	.50
2010
Basic earnings attributable to shareholders	$	96,105	212,392,286	$	.45
Effect of dilutive potential common shares	—		3,950,094	—
Diluted earnings attributable to shareholders	$	96,105	216,342,380	$	.44

	Nine months ended
	September 30,
(Amounts in thousands, except share and per share amounts)	Net earnings attributable to shareholders		Weighted average shares	Earnings per share
2011
Basic earnings attributable to shareholders	$	292,836	212,160,994	$	1.38
Effect of dilutive potential common shares	—		3,215,681	—
Diluted earnings attributable to shareholders	$	292,836	215,376,675	$	1.36
2010
Basic earnings attributable to shareholders	$	247,670	212,306,521	$	1.17
Effect of dilutive potential common shares	—		4,191,317	—
Diluted earnings attributable to shareholders	$	247,670	216,497,838	$	1.14

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

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

	Three months ended		Nine months ended
	September 30,		September 30,
	2011	2010	2011	2010
Shares	8,550,014	10,975,415	7,281,935	10,975,415