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Stock-Based Compensation - Summary of Nonvested Restricted Stock (Detail) - Restricted Stock - $ / shares
shares in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Number of Shares    
Beginning Balance 2,091 2,007
Granted 849 952
Vested (776) (698)
Forfeited (298) (170)
Ending Balance 1,866 2,091
Weighted Average Grant Date Fair Value (in dollars per share)    
Beginning Balance $ 10.15 $ 10.82
Granted 11.99 9.35
Vested 10.56 10.81
Forfeited 10.73 10.95
Ending Balance $ 10.72 $ 10.15