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Employer Contributions (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
IAM National Pension Fund      
Defined Benefit Plan Disclosure [Line Items]      
EIN 516031295    
Pension Plan No. 002    
Pension Protection Act Zone Status Green    
FIP/RP Status Pending/ Implemented No    
Contributions $ 121 $ 113 $ 99
Surcharge Imposed No    
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 630708442    
Pension Plan No. 001    
Pension Protection Act Zone Status Red    
FIP/RP Status Pending/ Implemented Implemented    
Contributions $ 156 130 132
Surcharge Imposed No    
Expiration Date of Collective Bargaining Agreement Aug. 12, 2017    
Western Conference Of Teamsters Pension Trust      
Defined Benefit Plan Disclosure [Line Items]      
EIN [1] 916145047    
Pension Plan No. [1] 001    
Pension Protection Act Zone Status [1] Green    
FIP/RP Status Pending/ Implemented [1] No    
Contributions [1] $ 233 271 260
Surcharge Imposed [1] No    
Expiration Date of Collective Bargaining Agreement [1] Feb. 04, 2017    
BC&T International Pension Fund      
Defined Benefit Plan Disclosure [Line Items]      
EIN [1] 526118572    
Pension Plan No. [1] 001    
Pension Protection Act Zone Status [1] Red    
FIP/RP Status Pending/ Implemented [1] Implemented    
Contributions [1] $ 1,194 $ 1,121 $ 1,077
Surcharge Imposed [1] Yes    
Expiration Date of Collective Bargaining Agreement [1] Oct. 31, 2015    
[1] The collective bargaining agreement is currently under negotiation.