Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Net Income (Loss) Per Share
Net income	$ 28,967	$ 14,999
Weighted average shares outstanding (in shares)	91,183	93,410
Dilutive impact from:
Share-based payment awards (in shares)	708	1,112
Dilutive weighted average shares outstanding (in shares)	91,891	94,522
Income per share
Basic (in dollars per share)	$ 0.32	$ 0.16
Dilutive (in dollars per share)	$ 0.32	$ 0.16