Goodwill and Other Intangible Assets - Acquired Intangible Assets (Details) $ in Millions	3 Months Ended
	Sep. 30, 2023 USD ($)
Acquired Finite-Lived Intangible Assets
Total intangible assets	$ 452.5
NeoPhotonics
Acquired Finite-Lived Intangible Assets
Total intangible assets	412.5
IPG Telecom Transmission Product Lines
Acquired Finite-Lived Intangible Assets
Total intangible assets	40.0
Acquired developed technologies
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 228.6
Weighted Average Amortization Period (Years)	5 years 2 months 12 days
Acquired developed technologies | NeoPhotonics
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 220.0
Acquired developed technologies | IPG Telecom Transmission Product Lines
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	8.6
Customer relationships
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 146.8
Weighted Average Amortization Period (Years)	5 years 10 months 24 days
Customer relationships | NeoPhotonics
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	$ 144.5
Customer relationships | IPG Telecom Transmission Product Lines
Acquired Finite-Lived Intangible Assets
Acquired finite lived intangible assets	2.3
In-process research and development
Acquired Finite-Lived Intangible Assets
In-process research and development	77.1
In-process research and development | NeoPhotonics
Acquired Finite-Lived Intangible Assets
In-process research and development	48.0
In-process research and development | IPG Telecom Transmission Product Lines
Acquired Finite-Lived Intangible Assets
In-process research and development	$ 29.1