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Income Taxes - Reconciliation of Statutory Federal Income Tax Rate (Detail)	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	21.00%	21.00%	21.00%
Increase (decrease) in tax rate resulting from:
State income taxes, net of federal benefit	2.90%	2.90%	2.90%
Noncontrolling interests	(0.50%)	(0.40%)	(0.40%)
Repatriation of foreign earnings	(0.70%)	(0.10%)	(0.10%)
Change in valuation allowance for deferred tax assets	0.50%	0.40%	0.30%
Adjustments to tax accruals and reserves	(0.50%)	(0.40%)	(0.20%)
Foreign rate differences	0.50%	0.40%	0.40%
Excess tax benefits related to equity compensation	(0.50%)	(0.50%)	(0.80%)
U.S. tax reform, net impact	0.00%	0.00%	0.40%
Other	(0.10%)	(0.30%)	0.10%
Effective tax rate	22.60%	23.00%	23.60%

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Effective income tax rate reconciliation, adjustments to tax accruals and reserves

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credit.

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