Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2015	Jul. 05, 2015	Apr. 05, 2015	Dec. 31, 2014
Deferred Revenue Arrangement
Extended warranty	$ 47,723	$ 46,115	$ 46,499	$ 43,299	$ 40,704	$ 43,300
Product maintenance and training	38,030		30,616
Customer advances	3,486		17,456
Undelivered elements and other	128,608		16,701
Total deferred revenue and customer advances	$ 217,847		$ 111,272