Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022	Apr. 03, 2022	Dec. 31, 2021
Deferred Revenue Arrangement
Maintenance, service and training	$ 70,609	$ 78,089
Extended warranty	49,343	56,180	$ 65,726	$ 64,168
Customer advances, undelivered elements and other	41,200	59,147
Total deferred revenue and customer advances	$ 161,152	$ 193,416