Deferred Compensation Plans - Additional Information (Detail) - USD ($)		3 Months Ended		9 Months Ended
		Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019	Jan. 03, 2020
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Trading securities held in deferred compensation plan		$ 79,573,000		$ 79,573,000		$ 75,934,000
Deferred compensation plan	[1]	80,052,000		80,052,000		$ 76,357,000
Change in market value of trust assets		$ 3,220,000	$ 361,000	$ (399,000)	$ 8,415,000
Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Percentage of compensation deferred				100.00%

[1] Included in accrued payroll and employee benefits and deferred compensation plan liabilities on the Company’s unaudited condensed consolidated balance sheet.