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Revenue Recognition - Summary of Activity of Deferred Revenue and Customer Advances (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Revenue Recognition and Deferred Revenue [Abstract]    
Balance at Beginning of Period $ 192,590 $ 173,780
Recognition of revenue included in balance at beginning of the period (147,310) (132,435)
Revenue deferred during the period, net of revenue recognized 179,571 169,337
Balance at End of Period $ 224,851 $ 210,682