Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-8

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)(5)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-8

Name:	us-gaap_ExtendedProductWarrantyAccrual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Sep. 28, 2025	Jun. 29, 2025	Dec. 31, 2024	Sep. 29, 2024	Jun. 30, 2024	Dec. 31, 2023
Deferred Revenue Disclosure [Abstract]
Maintenance, service and training	$ 57,606		$ 58,473
Customer advances, undelivered elements and other	68,316		48,118
Extended warranty	51,015	$ 46,751	41,624	$ 38,929	$ 33,512	$ 34,897
Total deferred revenue and customer advances	$ 176,937		$ 148,215