Net Income (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net Income (Loss) Per Share
Net income	$ 23,263	$ 9,937	$ 38,262	$ 14,350
Weighted average shares outstanding (in shares)	92,839	93,512	93,124	93,470
Dilutive impact from:
Share-based payment awards (in shares)	977	1,951	1,013	2,071
Dilutive weighted average shares outstanding (in shares)	93,816	95,463	94,137	95,541
Income per share
Basic (in dollars per share)	$ 0.25	$ 0.11	$ 0.41	$ 0.15
Dilutive (in dollars per share)	$ 0.25	$ 0.10	$ 0.41	$ 0.15
Employee Equity Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Employee equity awards (in shares)	312	472	652	1,034