Balance Sheet Components (Detail) (USD $)	Sep. 28, 2012	Sep. 30, 2011
Schedule of Inventory [Line Items]
Raw materials and parts	$ 237,300,000	$ 231,900,000
Work-in-progress	75,600,000	54,500,000
Finished goods	145,000,000	123,600,000
Total inventories	457,869,000	409,962,000
Land and land improvements	43,800,000	42,700,000
Buildings and leasehold improvements	215,500,000	211,800,000
Machinery and equipment	344,500,000	324,400,000
Construction in progress	46,400,000	18,700,000
Assets subject to lease	3,200,000	3,500,000
Property Plant and Equipment, Gross	653,400,000	601,100,000
Accumulated depreciation and amortization	(356,800,000)	(315,200,000)
Property, plant and equipment, net	296,592,000	285,894,000
Accrued compensation and benefits	150,300,000	144,800,000
Income taxes payable	63,300,000	34,500,000
Current deferred tax liabilities	2,900,000	3,200,000
Other	120,100,000	107,500,000
Total accrued expenses	336,568,000	290,009,000
Long-term income taxes payable	40,600,000	44,800,000
Other	85,600,000	77,900,000
Total other long-term liabilities	$ 126,169,000	$ 122,708,000