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Stock Compensation - Changes in Restricted Stock Awards (Detail) (USD $)
3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted Stock Awards Shares, Beginning balance 819,000 1,047,000  
Restricted Stock Awards Shares, Granted 17,000 539,000  
Restricted Stock Awards Shares, Vested   (701,000)  
Restricted Stock Awards Shares, Forfeited (5,000) (66,000)  
Restricted Stock Awards Shares, Ending balance 831,000 819,000 1,047,000
Weighted Average Grant Date Fair Value, Beginning balance $ 5.73 $ 4.42  
Granted $ 8.29 $ 5.96  
Vested   $ 3.84  
Forfeited $ 5.66 $ 5.36  
Outstanding and unvested at September 30, 2012 $ 5.77 $ 5.73 $ 4.42
Weighted Average Remaining Vesting Period, Granted 2 years 10 months 24 days 2 years 8 months 16 days  
Weighted Average Remaining Vesting Period 1 year 9 months 18 days 2 years 6 months 22 days 1 year 3 months 15 days