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)(5)
-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)(1)
-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. 27, 2026	Jun. 28, 2026	Dec. 31, 2025	Sep. 28, 2025	Jun. 29, 2025	Dec. 31, 2024
Deferred Revenue Disclosure [Abstract]
Maintenance, service and training	$ 56,853		$ 62,337
Customer advances, undelivered elements and other	133,586		85,762
Extended warranty	79,586	$ 78,124	55,913	$ 51,015	$ 46,751	$ 41,624
Total deferred revenue and customer advances	$ 270,025		$ 204,012