Acquisitions - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Oct. 30, 2018	Oct. 02, 2021	Jun. 27, 2020	Jan. 01, 2022	Jul. 03, 2021
Business Acquisition [Line Items]
Fair value of contingent consideration				$ 3.1	$ 4.0
RPC Photonics, Inc.
Business Acquisition [Line Items]
Cash consideration paid at closing	$ 33.4
Earn-out liability	$ 53.0
Earn-out liability period	4 years
Other
Business Acquisition [Line Items]
Cash consideration paid at closing		$ 1.2	$ 5.2
Total purchase consideration		1.6
Consideration, liabilities incurred		$ 0.4
Estimated useful life		5 years
Fair value of contingent consideration			$ 5.5
Acquired Developed Technology And Customer Relationships | Other
Business Acquisition [Line Items]
Estimated useful life			6 years
Developed Technology Rights | Other
Business Acquisition [Line Items]
Intangible assets acquired			$ 6.2
Customer Relationships | Other
Business Acquisition [Line Items]
Intangible assets acquired			$ 1.4