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Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]      
Operating Leases, Rent Expense, Net $ 1.0 $ 0.9  
Description of Lessor Leasing Arrangements, Operating Leases No    
Purchase commitments with vendors $ 19.4   $ 15.7