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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, 2012
Restricted stock units
 
Number of Shares  
Outstanding at beginning of the year 1,107
Granted 430
Issued (including 36 shares withheld for income taxes) (224)
Forfeited (82)
Outstanding at end of period 1,231
Vested at end of period 224
Weighted-Average Grant Date Fair Value per Share  
Outstanding at beginning of the year $ 20.38
Granted $ 18.77
Issued (including 63 shares withheld for income taxes) $ 20.68
Forfeited $ 20.55
Outstanding at end of period $ 19.74
Vested at end of period $ 20.68