Earnings Per Share Earnings Per Share - Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Net income attributable to common shareholders	$ 194,978	$ 280,089
Denominator:
Basic - weighted average common shares	136,844,504	148,738,828
Increase in weighted average common shares from dilutive effect of equity-based awards	1,730,404	2,334,807
Diluted - weighted average common shares, assuming exercise of equity-based awards	138,574,908	151,073,635
Basic earnings per share (in usd per share)	$ 1.42	$ 1.88
Diluted earnings per share (in usd per share)	$ 1.41	$ 1.85