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		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net income attributable to common shareholders	$ 253,288	$ 180,962	$ 497,604	$ 420,703
Denominator:
Basic - weighted average common shares	149,153,599	149,001,273	149,195,452	149,143,561
Increase in weighted average common shares from dilutive effect of equity-based awards	2,997,425	3,197,431	2,547,937	2,874,464
Diluted - weighted average common shares, assuming exercise of equity-based awards	152,151,024	152,198,704	151,743,389	152,018,025
Basic earnings per share (in usd per share)	$ 1.70	$ 1.21	$ 3.34	$ 2.82
Diluted earnings per share (in usd per share)	$ 1.66	$ 1.19	$ 3.28	$ 2.77