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Stock-Based Compensation - Summarized Activity Related to Restricted Stock (Detail) - Restricted Stock
shares in Thousands
3 Months Ended
Jan. 31, 2022
$ / shares
shares
Number of Shares  
Beginning balance (in shares) | shares 19
Vested (in shares) | shares (9)
Ending balance (in shares) | shares 10
Weighted-Average Grant Date Fair Value  
Beginning balance (in dollars per share) | $ / shares $ 157.36
Vested (in dollars per share) | $ / shares 144.06
Ending balance (in dollars per share) | $ / shares $ 168.88