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Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Useful Life (Details) | 3 Months Ended
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Mar. 28, 2020
Buildings |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 39 years
Demonstration units |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 3 years
Tooling |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 3 years
Vehicles |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 5 years
Minimum | Aircraft and components |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 4 years
Minimum | Building improvements |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 7 years
Minimum | Computer equipment and software |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 2 years
Minimum | Furniture and office equipment |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 2 years
Minimum | Machinery and equipment |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 5 years
Maximum | Aircraft and components |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 20 years
Maximum | Building improvements |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 15 years
Maximum | Computer equipment and software |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 12 years
Maximum | Furniture and office equipment |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 6 years
Maximum | Machinery and equipment |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 10 years

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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