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Restructuring Activities - Additional Information (Detail) |  |  |  |  |  | 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. 20, 2019 USD ($) | Apr. 21, 2018 USD ($)
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |  |
Number of new organizational structure business units established | BusinessUnit |  |  |  |  |  | 2 |  |
Restructuring and related impairment charges | [1] |  |  |  |  |  |  | $ 1,259,000
Reorganization Costs |  |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring and related impairment charges | [1] |  |  |  |  |  | $ 211,000 | 1,512,000
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 | Reduce Costs to Fuel Growth |  |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |  |
Non-restructuring consulting costs |  |  |  |  |  |  |  | 6,400,000
Consulting costs |  |  |  |  |  |  | $ 0 |
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 |  |  |  |
Launch of Project Centennial | Employee Severance | Restructuring Charges | Voluntary Employee Separation Incentive Plan |  |  |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |  |  |
Credit included in aggregate employee separation charge |  |  |  |  |  |  |  | $ 600,000
[1] | Presented on our Condensed Consolidated Statements of Income

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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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