Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	3 Months Ended			12 Months Ended
	May 31, 2008 CAD	Jul. 26, 2013 USD ($)	Apr. 27, 2012 USD ($)	Apr. 27, 2012 CAD	Oct. 25, 2013 USD ($) Person	Oct. 26, 2012 USD ($)	Oct. 28, 2011 USD ($)	Aug. 15, 2013 USD ($)
Contingent Liabilities [Line Items]
Rental expense for operating leases for engineering, selling, administrative and manufacturing					$ 17,996,000	$ 17,603,000	$ 14,208,000
Total Penalty								20,000,000
Other pending charges		10,000,000			10,000,000
Gain on settlement of contingency	11,800,000		11,900,000	11,800,000	0	11,891,000	0
Gain on settlement of contingency, after tax			$ 9,500,000
Number of U.S.-based employees represented by labor unions					601
Percentage of U.S.-based employees represented by labor unions					12.00%