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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 |

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