Earnings Per Share Earnings Per Share - Reconciliation of Numerator 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, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income attributable to common shareholders	$ 267,252	$ 253,288	$ 547,341	$ 497,604
Denominator:
Basic - weighted average common shares	145,493,247	149,153,599	147,116,038	149,195,452
Increase in weighted average common shares from dilutive effect of equity-based awards	2,689,530	2,997,425	2,347,242	2,547,937
Diluted - weighted average common shares, assuming exercise of equity-based awards	148,182,777	152,151,024	149,463,280	151,743,389
Basic earnings per share (in usd per share)	$ 1.84	$ 1.70	$ 3.72	$ 3.34
Diluted earnings per share (in usd per share)	$ 1.80	$ 1.66	$ 3.66	$ 3.28