Schedule of Amounts Recognized in Consolidated Balance Sheet (Detail) (USD $)	Oct. 31, 2014	Oct. 25, 2013
Amount Recognized in the Consolidated Balance Sheet
Non-current liability	$ (62,693,000)	$ (68,102,000)
Amounts Recognized in Accumulated Other Comprehensive Income
Ending balance	90,225,000	84,215,000
Pension Plan
Amount Recognized in the Consolidated Balance Sheet
Non-current asset	5,940,000	2,201,000
Current liability	(2,214,000)	(2,351,000)
Non-current liability	(49,600,000)	(52,174,000)
Net amount recognized	(45,874,000)	(52,324,000)
Amounts Recognized in Accumulated Other Comprehensive Income
Net actuarial loss (gain)	89,266,000	82,796,000
Prior service cost	700,000	490,000
Ending balance	89,966,000	83,286,000
Other Postretirement Benefit Plan
Amount Recognized in the Consolidated Balance Sheet
Non-current asset	0	0
Current liability	(704,000)	(785,000)
Non-current liability	(13,093,000)	(15,928,000)
Net amount recognized	(13,797,000)	(16,713,000)
Amounts Recognized in Accumulated Other Comprehensive Income
Net actuarial loss (gain)	339,000	768,000
Prior service cost	(80,000)	161,000
Ending balance	$ 259,000	$ 929,000