Earnings Per Share Earnings Per Share - Reconciliation of Numberator and Denominator of Basic and Diluted Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Numerator:
Net income attributable to common shareholders	$ 239,741	$ 297,018
Denominator:
Basic - weighted average common shares	149,285,849	152,439,026
Increase in weighted average common shares from dilutive effect of equity-based awards	3,331,261	2,990,382
Diluted - weighted average common shares, assuming exercise of equity-based awards	152,617,110	155,429,408
Basic earnings per share	$ 1.61	$ 1.95
Diluted earnings per share	$ 1.57	$ 1.91