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Summary of Restructuring Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2021	Sep. 28, 2020	Sep. 27, 2021	Sep. 28, 2020
Reportable Segment:
Restructuring charges			$ 19,868
General and administrative
Reportable Segment:
Restructuring charges	$ 243	$ 1,088	4,034	$ 14,830
General and administrative | Employee Separation/ Severance
Reportable Segment:
Restructuring charges		979	885	14,365
General and administrative | Contract Termination and Other Costs
Reportable Segment:
Restructuring charges	243	109	3,149	465
General and administrative | Reportable Segment | Printed Circuit Board
Reportable Segment:
Restructuring charges			593	6
General and administrative | Reportable Segment | Employee Separation/ Severance | Printed Circuit Board
Reportable Segment:
Restructuring charges			470	(8)
General and administrative | Reportable Segment | Contract Termination and Other Costs | Printed Circuit Board
Reportable Segment:
Restructuring charges			123	14
General and administrative | Corporate and Other
Reportable Segment:
Restructuring charges	243	1,088	3,441	14,824
General and administrative | Corporate and Other | Employee Separation/ Severance
Reportable Segment:
Restructuring charges		979	415	14,373
General and administrative | Corporate and Other | Contract Termination and Other Costs
Reportable Segment:
Restructuring charges	$ 243	$ 109	$ 3,026	$ 451

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(1))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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