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Acquisitions & Divestitures (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Sep. 28, 2013 | Sep. 29, 2012
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | 2 | 4
Components Segment [Member] |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | 1 | 2
Aspen [Member] |  |
Business Acquisition [Line Items] |  |
Acquisitions of businesses, net of cash acquired | $ 33,911 |
Protokraft [Member] |  |
Business Acquisition [Line Items] |  |
Acquisitions of businesses, net of cash acquired |  | 12,500
Business Acquisition, Preacquisition Contingency, Amount of Settlement |  | 4,809
Tritech [Member] |  |
Business Acquisition [Line Items] |  |
Acquisitions of businesses, net of cash acquired |  | 34,267
Business Acquisitions, Working Capital Adjustments, Cash Paid | 1,346 |
Space And Defense Controls Segment [Member] |  |
Business Acquisition [Line Items] |  |
Number of Businesses Acquired | 1 | 2
Broad Reach [Member] [Member] |  |
Business Acquisition [Line Items] |  |
Acquisitions of businesses, net of cash acquired | 34,550 |
Business Acquisition, Preacquisition Contingency, Amount of Settlement | 3,447 |
Issuance of unsecured note | 8,450 |
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 |  | 44,845
Business Acquisitions, Working Capital Adjustments, Cash Paid | 650 |
Medical Devices [Member] |  |
Business Acquisition [Line Items] |  |
Business divestiture number of Entities Divested | 1 |
Ethox Medical [Domain] [Member] |  |
Business Acquisition [Line Items] |  |
Proceeds from Divestiture of Businesses | 5,000 |
Noncash or Part Noncash Divestiture, Amount of Consideration Received | $ 200 |

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- Definition Amount paid or received to resolve the preacquisition contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 2 -Section A -Subsection 7 + Details
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- Definition Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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