Reportable Segments - Summary of Segment Description (Detail)	12 Months Ended
Dec. 25, 2020
Products [Member]
Segment Reporting Information [Line Items]
Product or Services	Assembly Weldments Machining Fabrication
Markets Served	Semiconductor
Geographic Areas	United States Asia Europe
Services [Member]
Segment Reporting Information [Line Items]
Product or Services	Cleaning Analytics
Markets Served	Semiconductor
Geographic Areas	United States Asia Europe

Basis for attributing revenues from external customers to individual countries.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 38
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9003-108599

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Description of the types of products and services from which the reportable segment derives its revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 280
-SubTopic 10
-Section 50
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Description of the factors used to identify reportable segments, including the basis of organization (for example, whether management has chosen to organize the enterprise around differences in products and services, geographic areas, regulatory environments, or a combination of factors and whether operating segments have been aggregated to reportable segments).

+ References

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-Topic 280
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-Section 50
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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.

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