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Exit and Disposal Activities - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Apr. 02, 2016
Jan. 02, 2016
Restructuring and Related Activities [Abstract]            
Restructuring costs incurred $ 900,000 $ 0 $ 900,000 $ 0    
Accrued restructuring costs 900,000   900,000      
Expected exit and disposal cost 3,700,000   3,700,000   $ 3,200,000 $ 4,100,000
Exit and disposal accrual, future extension for long-term severance obligations $ 600,000   $ 600,000