Revisions to Applicable Condensed Consolidated Statements of Cash Flows Line Item to Correct the Errors (Detail) - USD ($) $ in Thousands	4 Months Ended
	Apr. 21, 2018	Apr. 22, 2017
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets	$ 3,945	$ 1,707
Other accrued liabilities	(40,408)	3,570
Net cash provided by operating activities	97,112	81,921
Repurchase of independent distributor territories	(1,135)	(3,032)
Cash paid at issuance of notes receivable	(8,642)	(6,641)
Other investing activities	228	641
Net cash provided by investing activities	$ (27,429)	22,432
As reported
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		(4,702)
Other accrued liabilities		4,052
Net cash provided by operating activities		75,994
Repurchase of independent distributor territories		(3,161)
Other investing activities		56
Net cash provided by investing activities		28,359
Revisions
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		6,409
Other accrued liabilities		(482)
Net cash provided by operating activities		5,927
Repurchase of independent distributor territories		129
Cash paid at issuance of notes receivable		(6,641)
Other investing activities		585
Net cash provided by investing activities		$ (5,927)