Revisions to Applicable Condensed Consolidated Statements of Cash Flows Line Item to Correct the Errors (Detail) - USD ($) $ in Thousands	9 Months Ended
	Oct. 06, 2018	Oct. 07, 2017
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets	$ 2,794	$ (14,395)
Other accrued liabilities	(55,937)	53,020
Net cash provided by operating activities	232,059	224,026
Repurchase of independent distributor territories	(2,306)	(5,866)
Cash paid at issuance of notes receivable	(19,007)	(19,102)
Other investing activities	566	1,530
Net cash provided by investing activities	$ (73,412)	(12,804)
As reported
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		(29,833)
Other accrued liabilities		24,786
Net cash provided by operating activities		211,252
Repurchase of independent distributor territories		(11,187)
Other investing activities		523
Net cash provided by investing activities		(30)
Revisions
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Other assets		15,438
Other accrued liabilities		28,234
Net cash provided by operating activities		12,774
Repurchase of independent distributor territories		5,321
Cash paid at issuance of notes receivable		(19,102)
Other investing activities		1,007
Net cash provided by investing activities		$ (12,774)