Revisions to Applicable Condensed Consolidated Statements of Cash Flows Line Item to Correct the Errors (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 15, 2017	Jul. 16, 2016
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets	$ (13,244)	$ 3,212
Other accrued liabilities	23,079	10,597
Net cash provided by operating activities	160,896	195,297
Repurchase of independent distributor territories	(4,110)	(8,450)
Principal payments from notes receivable	13,284	11,954
Other investing activities	56	191
Net cash disbursed for investing activities	$ 19,853	(36,062)
As Previously Reported
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		3,617
Other accrued liabilities		10,878
Net cash provided by operating activities		193,857
Repurchase of independent distributor territories		(10,930)
Principal payments from notes receivable		13,939
Net cash disbursed for investing activities		(36,748)
Revisions
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		(405)
Other accrued liabilities		(281)
Net cash provided by operating activities		1,440
Repurchase of independent distributor territories		2,480
Principal payments from notes receivable		(1,985)
Other investing activities		191
Net cash disbursed for investing activities		$ 686