Stock-Based Compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) - Directors - Deferred Compensation Share Equivalent Units [Member] shares in Thousands	3 Months Ended
	Jan. 31, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding, Beginning balance (in shares) | shares	120
Dividend equivalents (in shares) | shares	0
Dividend equivalents (in shares) | shares	(7)
Outstanding, Ending balance (in shares) | shares	113
Share Based Compensation Arrangement By Share Based Payment Award Vested Equity Instruments Other Than Options Weighted Average Grant Date Fair Value [Roll Forward]
Beginning balance (in dollars per share) | $ / shares	$ 60.81
Dividend equivalents (in dollars per share) | $ / shares	0
Distributions (in dollars per share) | $ / shares	81.32
Ending balance (in dollars per share) | $ / shares	$ 59.93