Goodwill and Other Intangible Assets - Acquired Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
	Nov. 07, 2023	Jun. 29, 2024
Acquired Finite-Lived Intangible Assets
Total intangible assets		$ 452.5
Acquired developed technologies
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		$ 228.6
Weighted average amortization period (in years)		5 years 2 months 12 days
Customer relationships
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		$ 146.8
Weighted average amortization period (in years)		5 years 10 months 24 days
In-process research and development
Acquired Finite-Lived Intangible Assets
In-process research and development		$ 77.1
Cloud Light Technology Limited
Acquired Finite-Lived Intangible Assets
Total intangible assets	$ 333.0
Cloud Light Technology Limited | Acquired developed technologies
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 170.0
Weighted average amortization period (in years)	7 years
Cloud Light Technology Limited | Customer relationships
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 130.0
Weighted average amortization period (in years)	7 years
Cloud Light Technology Limited | In-process research and development
Acquired Finite-Lived Intangible Assets
In-process research and development	$ 16.0
Cloud Light Technology Limited | Order backlog
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 14.0
Weighted average amortization period (in years)	1 year
Cloud Light Technology Limited | Trade name and trademarks
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 3.0
Weighted average amortization period (in years)	1 year 2 months 12 days
NeoPhotonics
Acquired Finite-Lived Intangible Assets
Total intangible assets		412.5
NeoPhotonics | Acquired developed technologies
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		220.0
NeoPhotonics | Customer relationships
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		144.5
NeoPhotonics | In-process research and development
Acquired Finite-Lived Intangible Assets
In-process research and development		48.0
IPG telecom transmission product lines
Acquired Finite-Lived Intangible Assets
Total intangible assets		40.0
IPG telecom transmission product lines | Acquired developed technologies
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		8.6
IPG telecom transmission product lines | Customer relationships
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets		2.3
IPG telecom transmission product lines | In-process research and development
Acquired Finite-Lived Intangible Assets
In-process research and development		$ 29.1