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Earnings Per Share - Additional Information (Detail)	3 Months Ended		6 Months Ended
Earnings Per Share - Additional Information (Detail)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Options to Purchase Common Stock [Member]
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Common stock outstanding excluded from the computation of diluted earnings per share	254,192	943,458	254,192	1,014,125
Restricted Stock Units [Member]
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Common stock outstanding excluded from the computation of diluted earnings per share	0	0	144,686	177,489

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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