Debt (Details) (USD $)	3 Months Ended	9 Months Ended		9 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended	1 Months Ended	9 Months Ended
	Jul. 30, 2011	Aug. 04, 2012	Oct. 29, 2011	Aug. 04, 2012 Swap, Receivable [Member]	Jun. 30, 2009 Swap, Receivable [Member]	Aug. 04, 2012 Swap, Payable [Member]	Jun. 30, 2009 Swap, Payable [Member]	Feb. 04, 2012 Term Loan Facility [Member]	Aug. 04, 2012 Term Loan Facility [Member]	Dec. 22, 2010 Term Loan Facility [Member]	Jun. 30, 2009 5.0% Senior unsecured notes due July 1, 2014 [Member]	Aug. 04, 2012 5.0% Senior unsecured notes due July 1, 2014 [Member]	Apr. 30, 2011 3.0% Senior unsecured notes due April 15, 2016 [Member]	Aug. 04, 2012 3.0% Senior unsecured notes due April 15, 2016 [Member]
Debt (Textual) [Abstract]
Aggregate principal amount issued for notes										$ 145,000,000
Net proceeds of notes offering											370,400,000		370,500,000
Maturity date of senior unsecured notes									Dec. 22, 2013			Jul. 01, 2014		Apr. 15, 2016
Term loan facility repayment terms		payable quarterly every March, June, September and December
Term loan facility principle amortization schedule		3 years
Term loan facility quarterly interest payment		3,600,000
Short-term debt		14,500,000	14,500,000
Semi-annual fixed interest payments												semi-annual fixed interest payments due on January 1 and July 1 of each year, commencing January 1, 2010		semi-annual fixed interest payments due on April 15 and October 15 of each year, commencing October 15, 2011
Debt instrument, interest rate over LIBOR rate		1.25%
DebtInstrumentInterestRateOverLiborRateCurrentRate		1.72%
Debt, covenant compliance		compliant with these covenants							compliant with these covenants			compliant with these covenants
Term loan facility additional principal payment	17,500,000							12,000,000
Debt Instrument, Interest Rate Terms		The loan will bear interest at a fluctuating rate for each period equal to the LIBOR rate corresponding with the tenor of the interest period plus a spread of 1.25% (1.72% as of August 4, 2012)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest rate to be paid on swap				5.00%	5.00%
Notional amount of fixed rate debt					375,000,000		375,000,000
Floating interest rate						an annual three month LIBOR plus 2.05%
Derivative interest rate over LIBOR		2.05%
Number of installments				two installments on the 1st business day of every January and July		four installments on the 1st business day of every January, April, July and October
Derivative Instrument Interest Rate Libor Period		3 months
Cash proceeds from swap termination		19,800,000
Accrued interest from swap termination		1,300,000
Company's principle payments related to its long-term debt obligations in 2012						3,600,000
Company's principle payments related to its long-term debt obligations in 2013						14,500,000
Company's principle payments related to its long-term debt obligations in 2014						450,600,000
Company's principle payments related to its long-term debt obligations in 2016						$ 375,000,000