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Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share [Abstract]        
Anti-diluted options related to the purchase of common stock 0.9us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 1.6us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.9us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.6us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount