Net Income Per Share (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)			287,463
Exercise price range, low end of range (in dollars per share)			38.71
Exercise price range, high end of range (in dollars per share)			47.40
Employee Equity Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	832,000	312,000	640,000	652,000