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Employer Contributions (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Defined Benefit Plan Disclosure [Line Items]
EIN		58-2582379
IAM National Pension Fund
Defined Benefit Plan Disclosure [Line Items]
EIN		51-6031295
Pension Plan No.		002
Pension Protection Act		Red	Red
FIP/RP Status Pending/ Implemented		Implemented
Contributions		$ 153	$ 111	$ 108
Surcharge Imposed		Yes
Expiration Date of Collective Bargaining Agreement		Apr. 30, 2021
Retail Wholesale And Department Store International Union And Industry Pension Fund
Defined Benefit Plan Disclosure [Line Items]
EIN		63-0708442
Pension Plan No.		001
Pension Protection Act		Red	Red
FIP/RP Status Pending/ Implemented		Implemented
Contributions		$ 157	$ 160	159
Surcharge Imposed		No
Expiration Date of Collective Bargaining Agreement		Aug. 14, 2021
Western Conference Of Teamsters Pension Trust
Defined Benefit Plan Disclosure [Line Items]
EIN		91-6145047
Pension Plan No.		001
Pension Protection Act		Green	Green
FIP/RP Status Pending/ Implemented		No
Contributions		$ 349	$ 244	293
Surcharge Imposed		No
Expiration Date of Collective Bargaining Agreement		Feb. 04, 2022
BC&T International Pension Fund
Defined Benefit Plan Disclosure [Line Items]
EIN	[1]	52-6118572
Pension Plan No.	[1]	001
Contributions	[1]			$ 220
[1] The union employees withdrew from the fund effective November 1, 2017.  The collective bargaining agreement is still in effect.

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