Acquisitions - Additional Information (Detail) (USD $)		1 Months Ended
	Feb. 02, 2012	Jul. 26, 2011 Souriau Group Month	Dec. 30, 2010 Eclipse Electronic Systems Inc Year	Jul. 27, 2012 Eclipse Electronic Systems Inc
Business Acquisition [Line Items]
Acquired outstanding capital stock		$ 726,700,000	$ 123,800,000
Cash acquired		17,800,000
Estimated fair value adjustment for inventory, will be recognized as cost of goods sold		41,700,000
Fair value adjustment for inventory, cost of goods sold period, months		4.5
Goodwill		376,902,000	67,878,000
Contingent consideration deposited in escrow account			14,000,000
Estimated fair value of the contingent consideration			13,400,000	8,400,000
Payment of contingent consideration for performance objective period, years			3
Contingent consideration initial installment payment	$ 5,000,000