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Acquisitions (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Business Acquisition [Line Items]
Number of acquisitions completed	4	3
Number of segments in business acquisition		2
Components Segment [Member]
Business Acquisition [Line Items]
Number of acquisitions completed	2	1
Protokraft [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired	12,500
Contingent consideration with initial fair value	4,809
Tritech [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired	32,921
Animatics [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired		24,045
Acquisitions of businesses, number of shares included in purchase price		466,541
Acquisitions of businesses, stock valued in purchase price		18,739
Debt included in purchase price, net of cash acquired		1,837
Space And Defense Controls Segment [Member]
Business Acquisition [Line Items]
Number of acquisitions completed	2
Bradford Engineering [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired	13,173
In-Space Propulsion [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired	45,495
Aircraft Controls Segment [Member]
Business Acquisition [Line Items]
Number of acquisitions completed		2
Military Aftermarket Business [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired		2,373
Crossbow [Member]
Business Acquisition [Line Items]
Acquisitions of businesses, net of cash acquired		31,999

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