Property and Equipment, Net - Components of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 437,037	$ 423,328
Accumulated depreciation and amortization	(248,124)	(232,165)
Property and Equipment, Net	188,913	191,163
Land [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	9,504	9,504
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	112,882	108,122
Transportation equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	5,646	6,125
Machine and warehouse equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	179,723	174,411
Capitalized software [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	104,034	99,090
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 25,248	$ 26,076