Stock-Based Benefit Plans (Details Textual) (USD $)	12 Months Ended				12 Months Ended						3 Months Ended	12 Months Ended						12 Months Ended						12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Dec. 19, 2008	Oct. 31, 2010 Options with extended period [Member]	Oct. 31, 2012 Employee Stock Option [Member]	Oct. 31, 2011 Employee Stock Option [Member]	Oct. 31, 2010 Employee Stock Option [Member]	Oct. 31, 2012 Performance Based Restricted Stock Units [Member]	Dec. 20, 2011 Performance Based Restricted Stock Units [Member]	Jul. 31, 2012 Stock Price Based Restricted Stock Units [Member]	Oct. 31, 2012 Stock Price Based Restricted Stock Units [Member]	Oct. 31, 2011 Stock Price Based Restricted Stock Units [Member]	Oct. 31, 2010 Stock Price Based Restricted Stock Units [Member]	Dec. 20, 2011 Stock Price Based Restricted Stock Units [Member]	Dec. 20, 2010 Stock Price Based Restricted Stock Units [Member]	Dec. 21, 2009 Stock Price Based Restricted Stock Units [Member]	Oct. 31, 2012 Non Performance Based Restricted Stock Units [Member]	Oct. 31, 2011 Non Performance Based Restricted Stock Units [Member]	Oct. 31, 2010 Non Performance Based Restricted Stock Units [Member]	Dec. 20, 2011 Non Performance Based Restricted Stock Units [Member]	Dec. 20, 2010 Non Performance Based Restricted Stock Units [Member]	Dec. 21, 2009 Non Performance Based Restricted Stock Units [Member]	Oct. 31, 2012 Restricted Stock Units in Lieu of Compensation [Member]	Oct. 31, 2011 Restricted Stock Units in Lieu of Compensation [Member]	Oct. 31, 2010 Restricted Stock Units in Lieu of Compensation [Member]	Oct. 31, 2009 Restricted Stock Units in Lieu of Compensation [Member]	Oct. 31, 2012 Employee stock purchase plan [Member]	Oct. 31, 2012 Active plans [Member] Employee Stock Option [Member]	Oct. 31, 2012 Active plans [Member] Stock Option Non Employee Director [Member]	Oct. 31, 2012 Inactive Plans [Member] Employee Stock Option [Member]	Oct. 31, 2012 Inactive Plans [Member] Stock Option Non Employee Director [Member]	Oct. 31, 2012 Employees including officers [Member]	Oct. 31, 2012 Nonemployee directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock incentive plans	2																																1	1
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number												506,000	706,000	400,000				137,764	30,994	19,663				38,000	46,000	56,000
Stock Based Benefit Plans (Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,489,000	6,712,000	8,038,000
Term of Stock Option Granted under Stock Incentive Plan																													10 years		10 years
Stock based expense recognized	$ 15,575,000	$ 12,548,000	$ 9,689,000		$ 552,000	$ 7,411,000	$ 8,626,000	$ 9,332,000	$ 3,953,000			$ 2,887,000	$ 3,701,000	$ 2,121,000				$ 156,000	$ 144,000	$ 138,000
Options under Extended Exercise Period			175,813
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term						4 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term						3 years 7 months
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures											118,800	0	306,000	200,000				107,820	15,497	19,663							62,051
Discounted Market Price of Common Stock on Specified Offering Dates Subject to Restrictions under Employee Stock Purchase Plan																												95.00%
Minimum percentage of units issued to the recipients of the base award									90.00%
Maximum percentage of units issued to the recipients of the base award									110.00%
Number of consecutive trading days												20 days
Period of issuance of stock price based RSU												5 years
Unamortized value of stock compensation	14,200,000	12,700,000	11,100,000			7,200,000			3,636,000			2,042,000	4,929,000	3,636,000				1,326,000	379,000	224,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period									4 years									4 years						4 years					4 years	2 years	4 years	2 years
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition						2 years 5 months
Discounted Market Price of Common Stock on Specified Offering Dates Subject to Restrictions under Employee Stock Purchase Plan																												85.00%
Shares Reserved for Employee Stock Purchase Plan																												1,200,000
Closing Price of Company Common Stock at Issuance Date				$ 21.70						$ 20.50						$ 19.32	$ 18.38				$ 20.50	$ 19.32	$ 18.38
Common Stock, Capital Shares Reserved for Future Issuance	5,500,000																											594,000
Salary Deferral Charged to Selling General and Administrative Expense																											130,000
Stock Based Benefit Plans (Additional Textual) [Abstract]
Shares issued under stock-based benefit plans																								7,982	8,975	2,749
Percentage increases over closing price												30.00%
gross value of stock awarded related to restricted stock units											5,934,000
Gross shares awarded related to restricted stock											200,000
Value of shares withheld for income taxes on restricted shares issued											2,409,000
Shares withheld for income taxes related to share issued for RSU											81,200
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	$ 8,096,000	$ 8,102,000	$ 22,000								$ 3,525,000
Stock incentive plan inactive - outstanding grants	1