Credit Facilities (Details) $ in Thousands	12 Months Ended
	Jul. 31, 2015 USD ($)	Oct. 28, 2014 USD ($)	Oct. 27, 2014 USD ($)	Jul. 31, 2014 USD ($)
Line of Credit Facility [Line Items]
Number of uncommitted credit facilities	2
European Operations [Member]
Line of Credit Facility [Line Items]
Credit facilities, maximum borrowing capacity	$ 37,400			$ 37,400
Credit facilities, amount outstanding	$ 10,400			0
Short-term borrowings, weighted average interest rate	0.83%
Uncommitted Credit Facilities [Member]
Line of Credit Facility [Line Items]
Credit facilities, amount outstanding	$ 15,300			4,300
Credit facility, remaining borrowing capacity	$ 49,700			45,700
Short-term borrowings, weighted average interest rate	1.00%
Treasury Notes [Member]
Line of Credit Facility [Line Items]
Credit facilities, maximum borrowing capacity	$ 109,900			109,900
Credit facilities, amount outstanding	0			0
Subsidiaries [Member]
Line of Credit Facility [Line Items]
Credit facilities, amount outstanding	1,600			1,000
Credit facility, remaining borrowing capacity	$ 47,200			$ 57,500
Short-term borrowings, weighted average interest rate	0.41%			0.75%
Multi Currency Revolving Facility [Member]
Line of Credit Facility [Line Items]
Credit facility expiration period	5 years
Credit facilities, maximum borrowing capacity		$ 400,000	$ 250,000
Credit facilities, amount outstanding	$ 160,000			$ 180,000
Credit facility, remaining borrowing capacity	$ 232,200			$ 62,200