Stock-Based Benefit Plans (Time-based RSUs) (Details 9) - USD ($)	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016	Dec. 20, 2016	Dec. 18, 2015	Dec. 16, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based expense recognized	$ 28,312,000	$ 28,466,000	$ 26,679,000
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs
Unamortized value of RSUs	$ 20,900,000	$ 24,200,000	$ 27,000,000
Restricted Stock Units (RSUs) [Member] | Vesting Based On Service [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	296,790	377,564	139,684
Share Price				$ 47.84	$ 31.61	$ 32.85
Fair value of restricted stock units issued	$ 14,198,000	$ 11,935,000	$ 4,589,000
Stock based expense recognized	$ 11,193,000	$ 7,572,000	$ 3,958,000
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs
Aggregate outstanding RSUs	850,853	673,224	396,716
Unamortized value of RSUs	$ 8,818,000	$ 6,783,000	$ 2,956,000
Shares withheld for income taxes related to share issued for RSU	23,289	20,400	25,340
Value of shares withheld for income taxes on restricted shares issued	$ 1,145	$ 664,300	$ 827,800
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	58,552	52,757	70,627