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Stock Plans - Non-Vested RSUs (Details) - Restricted Stock Units (RSUs)
12 Months Ended
Oct. 31, 2021
$ / shares
shares
Number of Shares  
Nonvested RSUs, beginning balance (in shares) | shares 368,620
Granted (in shares) | shares 114,111
Vested and issued (in shares) | shares (137,119)
Forfeited or expired (in shares) | shares (28,277)
Nonvested RSUs, ending balance (in shares) | shares 317,335
Weighted- Average Grant Date Fair Value Per Share  
Non-vested RSUs, beginning balance (in dollars per share) | $ / shares $ 247.09
Granted (in dollars per share) | $ / shares 352.92
Vested and issued (in dollars per share) | $ / shares 222.42
Forfeited or exercised (in dollars per share) | $ / shares 269.62
Non-vested RSUs, ending balance (in dollars per share) | $ / shares $ 293.80