Restructuring Activities - Additional Information (Detail)							4 Months Ended
		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