Stock-Based Benefit Plans (Nonperformance-based RSUs) (Details 9) - USD ($)	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015	Dec. 20, 2016	Dec. 18, 2015	Dec. 16, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based expense recognized	$ 28,466,000	$ 26,679,000	$ 22,903,000
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs
Unamortized value of RSUs		$ 27,000,000	$ 25,200,000
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	377,564	139,684	124,568
Share Price				$ 31.61	$ 32.85	$ 32.74
Fair value of restricted stock units issued	$ 11,935,000	$ 4,589,000	$ 4,078,000
Stock based expense recognized	$ 7,572,000	$ 3,958,000	$ 3,317,000
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs
Aggregate outstanding RSUs	673,224	396,716	380,548
Unamortized value of RSUs	$ 6,783,000	$ 2,956,000	$ 2,542,000
Shares withheld for income taxes related to share issued for RSU	20,400	25,340	4,221
Value of shares withheld for income taxes on restricted shares issued	$ 664,300	$ 827,800	$ 146,500
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	52,757	70,627	10,049