Components of Costs Associated with Project Centennial (Detail) - USD ($) $ in Thousands		4 Months Ended
		Apr. 21, 2018	Apr. 22, 2017
Restructuring and related impairment charges:
Restructuring and related impairment charges	[1]	$ 1,259
Project Centennial implementation costs	[2]	6,432	$ 15,406
Total Project Centennial restructuring and implementation costs		7,691	$ 15,406
Reorganization Costs
Restructuring and related impairment charges:
Restructuring and related impairment charges		1,512
Employee Termination Benefits
Restructuring and related impairment charges:
Restructuring and related impairment charges		344
VSIP
Restructuring and related impairment charges:
Restructuring and related impairment charges		$ (597)

[1] Presented on our Condensed Consolidated Statements of Operations.

[2] Costs are recorded in the selling, distribution, and administrative expenses line item of our Condensed Consolidated Statements of Operations