Warranty - Balance Sheet Classification of Warranty Provision Account (Detail) - USD ($) $ in Thousands	Jul. 03, 2021	Apr. 03, 2021	Jan. 02, 2021	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019
Guarantees [Abstract]
Other accrued liabilities	$ 527		$ 405
Other long-term liabilities	45		75
Total warranty provision	$ 572	$ 590	$ 480	$ 662	$ 725	$ 1,022

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)(1),(c)(5)
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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