Components of Property, Plant and Equipment (Detail) (USD $)	Sep. 27, 2013	Sep. 28, 2012
Property Plant And Equipment [Line Items]
Land and land improvements	$ 44,600,000	$ 43,800,000
Buildings and leasehold improvements	242,200,000	215,500,000
Machinery and equipment	380,800,000	344,500,000
Construction in progress	46,600,000	46,400,000
Assets subject to lease	1,800,000	3,200,000
Property Plant and Equipment, Gross	716,000,000	653,400,000
Accumulated depreciation and amortization	(400,700,000)	(356,800,000)
Property, plant and equipment, net	$ 315,331,000	$ 296,592,000