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RSU Activity (Detail) (Restricted stock units, USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Oct. 31, 2011
Restricted stock units
 
Number of Shares  
Outstanding at beginning of the year 735
Granted 528
Issued (including 36 shares withheld for income taxes) (121)
Forfeited (35)
Outstanding at end of period 1,107
Vested at end of period 121
Weighted-Average Grant Date Fair Value per Share  
Outstanding at beginning of the year $ 20.19
Granted $ 20.39
Issued (including 36 shares withheld for income taxes) $ 19.50
Forfeited $ 20.67
Outstanding at end of period $ 20.38
Vested at end of period $ 19.50