Debt (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended	12 Months Ended		1 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended
	May 04, 2013	May 04, 2013	Nov. 03, 2012	Oct. 29, 2011	May 04, 2013 Swap, Receivable [Member]	Jun. 30, 2009 Swap, Receivable [Member]	May 04, 2013 Swap, Payable [Member]	Jun. 30, 2009 Swap, Payable [Member]	May 04, 2013 Term Loan Facility [Member]	Nov. 03, 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]	May 04, 2013 5.0% Senior unsecured notes due July 1, 2014 [Member]	Apr. 30, 2011 3.0% Senior unsecured notes due April 15, 2016 [Member]	May 04, 2013 3.0% Senior unsecured notes due April 15, 2016 [Member]	May 04, 2013 Fair Value, Measurements, Nonrecurring [Member] 5.0% Senior unsecured notes due July 1, 2014 [Member]	Jun. 30, 2009 Fair Value, Measurements, Nonrecurring [Member] 5.0% Senior unsecured notes due July 1, 2014 [Member]	Apr. 30, 2011 Fair Value, Measurements, Nonrecurring [Member] 3.0% Senior unsecured notes due April 15, 2016 [Member]
Debt (Textual) [Abstract]
Aggregate principal amount issued for notes											$ 145,000,000						$ 375,000,000	$ 375,000,000
Net proceeds of notes offering												370,400,000		370,500,000
Interest rate to be paid on long term notes																5.00%	5.00%	3.00%
Debt Instrument, Maturity Date									Dec. 22, 2013				Jul. 01, 2014		Apr. 15, 2016	Jul. 01, 2014
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	0	0	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%
Debt, covenant compliance		compliant with these covenants											compliant with these covenants
Term loan facility additional principal payment	60,100,000			17,500,000						42,000,000
Debt Instrument, Interest Rate Terms		The loan bore 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%
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 2014							375,000,000
Company's principle payments related to its long-term debt obligations in 2016							375,000,000
Amortization into interest expense from swap termination		$ 4,000,000	$ 5,300,000