Stock-Based Compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) - Directors - Deferred Compensation Share Equivalent Units shares in Thousands	12 Months Ended
	Oct. 31, 2021 $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	120
Restricted share units vested (in shares) | shares	4
Dividend equivalents (in shares) | shares	1
Distributions (in shares) | shares	(19)
Ending balance (in shares) | shares	106
Weighted˗Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 60.81
Restricted share units vested (in dollars per share) | $ / shares	199.36
Dividend equivalents (in dollars per share) | $ / shares	215.03
Distributions (in dollars per share) | $ / shares	58.86
Ending balance (in dollars per share) | $ / shares	$ 68.11