Stock-Based Benefit Plans (Details 4) (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	Dec. 17, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based expense recognized	$ 4,691	$ 4,422	$ 16,985	$ 14,449
Non-Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units issued			99,336		94,080
Closing Price of Company Common Stock at Issuance Date						$ 35.16	$ 32.22
Fair value of restricted stock units issued			3,493		3,031
Stock based expense recognized	557	464	2,459	2,048
Summary of aggregate number and unamortized value of outstanding stock price based RSUs
Aggregate outstanding RSUs	305,186		305,186		225,252
Unamortized value of RSUs	$ 2,620		$ 2,620		$ 1,706