Stock-Based Benefit Plans (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013	Oct. 31, 2013	Dec. 20, 2013	Jan. 29, 2013
Performance-Based Restricted Stock Units
Stock based expense recognized	$ 4,691	$ 4,422	$ 16,985	$ 14,449
Performance Based Restricted Stock Units [Member]
Performance-Based Restricted Stock Units
Issuance of restricted stock and stock units, shares			287,817		302,511
Closing price of the Company's common stock on date of issuance						$ 35.16	$ 37.78
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures			10,120		11,429
Stock based expense recognized	2,433	2,074	6,886	4,662
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	960,505		960,505		672,687
Unamortized value of RSUs	$ 11,353		$ 11,353		$ 8,120