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Restructuring Activities - Additional Information (Detail) $ in Thousands |  |  |  |  |  | 4 Months Ended
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Jul. 02, 2018 Segment | Sep. 25, 2017 Employee | Sep. 07, 2017 | Jul. 17, 2017 | May 03, 2017 BusinessUnit | Apr. 18, 2020 | Apr. 20, 2019 USD ($)
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Impairment charges |  |  |  |  |  |  | $ 530
Manufacturing Lines |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Impairment charges |  |  |  |  |  |  | $ 500
Develop Leading Capabilities |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Number of operating segments | Segment | 1 |  |  |  |  |  |
Launch of Project Centennial |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Restructuring activities, expected completion year |  |  |  |  |  | 2021 |
Launch of Project Centennial | Develop Leading Capabilities |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Number of new organizational structure business units established | BusinessUnit |  |  |  |  | 2 |  |
Launch of Project Centennial | Employee Severance | Voluntary Employee Separation Incentive Plan |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |
Voluntary employee separation incentive plan commencement date |  |  |  | Jul. 17, 2017 |  |  |
Election period closing date |  | Sep. 25, 2017 |  |  |  |  |
Approximate number of employees accepted offer | Employee |  | 325 |  |  |  |  |
Separations beginning date |  |  | Sep. 07, 2017 |  |  |  |

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: 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=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2611-110228 + Details
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- Definition Date the restructuring activities were initiated or are expected to be initiated, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(a)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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