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Net Income Per Share (Details 2) (USD $)	3 Months Ended		9 Months Ended
Net Income Per Share (Details 2) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	289,537		287,582
Exercise price range, low end of range (in dollars per share)			37.66
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)	801,000	61,000	762,000	325,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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