Intangible Assets (Details) - USD ($) $ in Thousands				12 Months Ended
	May 27, 2021	Dec. 30, 2020	Sep. 23, 2019	Jul. 02, 2021	Jul. 03, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 432,268	$ 294,657
Accumulated Amortization				(124,709)	(85,909)
Net Carrying Amount				307,559	208,748
Physical Optics Corporation
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				116,000
Accumulated Amortization				(10,389)
Net Carrying Amount				105,611
Pentek
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				24,110
Accumulated Amortization				(332)
Net Carrying Amount				23,778
Acquired intangible assets, estimated useful lives			15 years
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				280,520	181,960
Accumulated Amortization				(69,474)	(48,450)
Net Carrying Amount				$ 211,046	$ 133,510
Acquired intangible assets, estimated useful lives				12 years	11 years 4 months 24 days
Customer Relationships | Physical Optics Corporation
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 83,000
Accumulated Amortization				(4,404)
Net Carrying Amount				$ 78,596
Acquired intangible assets, estimated useful lives		11 years		11 years 6 months
Customer Relationships | Pentek
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 15,560
Accumulated Amortization				(62)
Net Carrying Amount				$ 15,498
Acquired intangible assets, estimated useful lives	21 years			21 years
Licensing agreements and patents
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 6	$ 1,505
Accumulated Amortization				0	(1,404)
Net Carrying Amount				6	$ 101
Acquired intangible assets, estimated useful lives					3 years 6 months
Completed technologies
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				139,332	$ 107,992
Accumulated Amortization				(49,126)	(34,522)
Net Carrying Amount				$ 90,206	$ 73,470
Acquired intangible assets, estimated useful lives				9 years 3 months 18 days	9 years 2 months 12 days
Completed technologies | Physical Optics Corporation
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 25,000
Accumulated Amortization				(1,985)
Net Carrying Amount				$ 23,015
Acquired intangible assets, estimated useful lives				9 years
Completed technologies | Pentek
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 6,340
Accumulated Amortization				(86)
Net Carrying Amount				$ 6,254
Acquired intangible assets, estimated useful lives				6 years 9 months 18 days
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 12,410	$ 3,200
Accumulated Amortization				(6,109)	(1,533)
Net Carrying Amount				$ 6,301	$ 1,667
Acquired intangible assets, estimated useful lives				1 year 2 months 12 days	2 years
Developed Technology | Physical Optics Corporation
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, estimated useful lives		9 years
Developed Technology | Pentek
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, estimated useful lives	7 years
Order or Production Backlog | Physical Optics Corporation
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 8,000
Accumulated Amortization				(4,000)
Net Carrying Amount				$ 4,000
Acquired intangible assets, estimated useful lives				1 year
Order or Production Backlog | Pentek
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				$ 2,210
Accumulated Amortization				(184)
Net Carrying Amount				$ 2,026
Acquired intangible assets, estimated useful lives	1 year			1 year