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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of common shares available for grant	4,525		4,525
Executive officers and other highly compensated employees salary and annual cash incentive compensation deferrals percentage, maximum			100.00%
Executive officers share-based long-term incentive compensation deferrals percentage, maximum			90.00%
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum rate of stock option, description			not exceeding 25 percent per year
Option expiring period			10 years
Compensation expense recognized	$ 2,385	$ 2,525	$ 7,648	$ 7,583
Options exercisable beginning period			1 year
Normal retirement age			65 years
Period for options considered to be forfeited for retirees			12 months
Termination period on death or disability of option holder			12 months
Options grants in period vesting period			Dec. 28, 2017
Unrecognized compensation cost related to unvested stock option	13,963		$ 13,963
Weighted average period expected to be amortized, non vested shares			1 year 8 months 12 days
Weighted-average expected volatility used			25.40%	24.30%
Weighted average grant date fair value of stock options granted			$ 38.57	$ 31.74
Total intrinsic value of options exercised	39,811	2,449	$ 58,758	$ 21,770
Cash received from the exercise of stock options			$ 46,304	17,275
Stock Options [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum rate of stock option			25.00%
Restricted Shares and Restricted Share Units [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant restricted shares transferred period			3 years
Restricted Shares and Restricted Share Units [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant restricted shares transferred period			1 year
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Normal retirement age			65 years
Weighted average period expected to be amortized, non vested shares			2 years
Period for restricted shares and share units considered to be forfeited for retirees			12 months
Restricted shares termination period for disability or death			12 months
Restriction period for restricted shares granted			Dec. 28, 2017
Unrecognized compensation cost related to nonvested restricted stock	5,053		$ 5,053
Expense related to nonvested common shares	734	898	2,995	2,762
Common share dividends amount included in compensation cost	21	22	$ 64	58
Restricted Stock Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average period expected to be amortized, non vested shares			3 months 18 days
Period for pro-rata vesting of shares or units for non-employee directors			1 year
Unrecognized compensation cost related to nonvested restricted stock	295		$ 295
Expense related to nonvested common shares	299	263	883	789
Performance Share Incentive Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense		15		$ 1,611
Compensation credited to expense	552		2,834
Cumulative amount recorded in shareholders' equity related to Long-Term Incentive Plan	1,455		$ 1,455
Periods of performance considered for calculating compensation expense			3 years
Performance Share Incentive Awards [Member] \| November 25, 2019 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value			$ 160.02
Performance Share Incentive Awards [Member] \| March 30, 2020 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value			133.01
Performance Share Incentive Awards [Member] \| November 26, 2018 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value				$ 120.12
Performance Share Incentive Awards [Member] \| July 6. 2020 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value			$ 184.04
Performance Share Incentive Awards [Member] \| August 1, 2019 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value				$ 138.53	$ 138.53
Performance Share Incentive Awards [Member] \| November 20, 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value					$ 123.45
Deferred Compensation [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common share dividends amount included in compensation cost	83	74	$ 247	$ 219
Executive officers and other highly compensated employees salary and annual cash incentive compensation deferrals percentage, maximum			100.00%
Executive officers share-based long-term incentive compensation deferrals percentage, maximum			90.00%
Deferred Compensation [Member] \| Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expense related to director deferred compensation	$ 44	$ 38	$ 130	$ 113