Components of Inventories (Detail) (USD $)	Mar. 29, 2013	Sep. 28, 2012
Schedule of Inventory [Line Items]
Raw materials and parts	$ 252,800,000	$ 237,300,000
Work-in-progress	85,100,000	75,600,000
Finished goods	164,700,000	145,000,000
Total inventories	$ 502,598,000	$ 457,869,000	[1]

[1] The condensed consolidated balance sheet as of September 28, 2012 was derived from audited financial statements as of that date, but does not include all disclosures required by accounting principles generally accepted in the United States of America.