Earnings per share (Tables)

3 Months Ended

Sep. 30, 2011

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table presents a reconciliation of the numerator and denominator of basic and diluted earnings per share for the three months ended September 30, 2011 and 2010.

	Three Months Ended September 30,
	2011		2010
Numerator:
Net income attributable to common shareholders	$	297,018	$	247,171
Denominator:
Basic - weighted average common shares		152,439,026		161,272,536
Increase in weighted average from dilutive effect of stock-based awards		2,990,382		2,834,684
Diluted - weighted average common shares, assuming exercise of stock-based awards		155,429,408		164,107,220
Basic earnings per share	$	1.95	$	1.53
Diluted earnings per share	$	1.91	$	1.51