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- Definition

Summary Of Significant Accounting Policies [Line Items]

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Warranty period for defects in material and workmanship.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Summary of Significant Accounting Policies - Additional Information (Detail) shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021 shares	Jun. 27, 2020 shares	Jul. 03, 2021 segment shares	Jun. 27, 2020 shares
Summary Of Significant Accounting Policies [Line Items]
Number of Sources of Product Revenue \| segment			4
Options to purchase of shares of common stock	400	300	200	300
Patents
Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life			10 years
Trademarks
Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life			17 years
Demonstration units
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Restricted Stock Units (RSUs)
Summary Of Significant Accounting Policies [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			82
Restricted Stock Units (RSUs) \| Chief Executive Officer
Summary Of Significant Accounting Policies [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			2,700	2,700
Minimum
Summary Of Significant Accounting Policies [Line Items]
Warranty period for defects in material and workmanship			3 months
Minimum \| Building and building improvements
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			7 years
Minimum \| Computer equipment and software
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			2 years
Minimum \| Furniture and office equipment
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			2 years
Minimum \| Machinery, equipment and tooling
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Minimum \| Transportation, vehicles and other
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			4 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Warranty period for defects in material and workmanship			48 months
Maximum \| Building and building improvements
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			39 years
Maximum \| Computer equipment and software
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			12 years
Maximum \| Furniture and office equipment
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			6 years
Maximum \| Machinery, equipment and tooling
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Maximum \| Transportation, vehicles and other
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			20 years