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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 03, 2015 | Sep. 27, 2014 | Sep. 28, 2013
Summary Of Significant Accounting Policies |  |  |
Fiscal Period Duration - Weeks | 1 year 7 days | 1 year |
Percentage of sales accounted for using percentage of completion | 33.00% | 34.00% | 33.00%
Percent of sales as units are delivered or services are performed | 67.00% |  |
Goodwill impairment charge | $ 0 | $ 0 | $ 38,200
Impairment charges of long-lived assets | $ 2,432 |  | 0
Buildings |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 40 |  |
Building Improvements |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 15 |  |
Machinery And Equipment |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 10 |  |
Tooling And Test Equipment |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 8 |  |
Furniture And Fixtures |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 12 |  |
Maximum |  |  |
Summary Of Significant Accounting Policies |  |  |
Standard Product Warranty Description | sixty |  |
Maximum | Computer Hardware |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 5 |  |
Minimum |  |  |
Summary Of Significant Accounting Policies |  |  |
Standard Product Warranty Description | twelve |  |
Minimum | Computer Hardware |  |  |
Summary Of Significant Accounting Policies |  |  |
Estimated useful lives of property plant and equipment, years | 3 |  |
Finite-Lived Intangible Assets |  |  |
Summary Of Significant Accounting Policies |  |  |
Restructuring costs and asset impairment charges | $ 472 | 739 |
Property, Plant and Equipment |  |  |
Summary Of Significant Accounting Policies |  |  |
Restructuring costs and asset impairment charges |  | $ 1,296 |
Industrial Systems |  |  |
Summary Of Significant Accounting Policies |  |  |
Goodwill impairment charge |  |  | 0
Medical Devices |  |  |
Summary Of Significant Accounting Policies |  |  |
Goodwill impairment charge |  |  | $ 38,200

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