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9. Share-Based Payments (Details) (USD $)
6 Months Ended
Dec. 31, 2012
Share-Based Payments  
Shares Nonvested at June 30, 2012 2,886,668
Shares Granted   
Shares Vested (5,833)
Shares Forfeited and cancelled (441,667)
Shares Nonvested at September 30, 2012 2,439,168
Weighted Average Grant Date Fair Value Nonvested at June 30, 2012 $ 29.45
Weighted Average Grant Date Fair Value Granted   
Weighted Average Grant Date Fair Value Vested $ 11.77
Weighted Average Grant Date Fair Value Forfeited and cancelled $ 21.14
Weighted Average Grant Date Fair Value Nonvested at September 30, 2012 $ 30.57