Stock-Based Benefit Plans (Performance-based RSUs) (Details 7) - USD ($)	12 Months Ended
Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Performance-Based Restricted Stock Units
Stock based expense recognized	$ 24,326,000	$ 26,180,000	$ 28,312,000
Unamortized value of RSUs	$ 15,900,000	$ 18,700,000	$ 20,900,000
Restricted Stock Units (RSUs) [Member] \| Vesting Based On Performance [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum Percentage of Units Issued to Recipients of Base Award	0.00%	0.00%	0.00%
Maximum Percentage of Units Issued to Recipients of Base Award	150.00%	150.00%	110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	116,423	158,721	135,554
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	579,115	645,538	786,857
Fair value of restricted stock units issued	$ 3,790,000	$ 5,533,000	$ 6,485,000
Stock based expense recognized	5,986,000	5,514,000	6,949,000
Unamortized value of RSUs	1,674,000	3,431,000	3,824,000
gross value of stock awarded related to restricted stock units	$ 7,200,000	$ 9,700,000	$ 13,700,000
Gross shares distributed related to restricted stock	182,846	300,040	288,814
Value of shares withheld for income taxes on restricted shares issued	$ 3,000,000.0	$ 4,000,000.0	$ 6,000,000.0
Shares withheld for income taxes related to share issued for RSU	75,206	123,409	126,330
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	$ 4,300,000	$ 5,700,000	$ 7,700,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	107,640	176,631	162,484
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 32.55	$ 34.86	$ 47.84

The estimated fair value of restricted stock units issued during the period.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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