Goodwill and Other Intangible Assets - Narrative (Details)	3 Months Ended			6 Months Ended
	Dec. 31, 2022 USD ($)	Oct. 01, 2022 business	Jul. 02, 2022 USD ($)	Dec. 31, 2022 USD ($)	Aug. 03, 2022 USD ($)
Goodwill
Number of businesses acquired (business) | business		2
Goodwill impairment	$ 0		$ 0	$ 0
NeoPhotonics
Goodwill
Goodwill, acquired during period				318,400,000
Other intangible assets, net					$ 412,500,000
NeoPhotonics | OpComms
Goodwill
Goodwill, acquired during period	318,300,000			318,400,000
Goodwill measurement of adjustment	100,000
NeoPhotonics | Lasers
Goodwill
Goodwill, acquired during period				0
IPG product lines
Goodwill
Goodwill, acquired during period				10,900,000
Other intangible assets, net					$ 40,000,000
IPG product lines | OpComms
Goodwill
Goodwill, acquired during period	6,500,000			10,900,000
Goodwill measurement of adjustment	$ 4,400,000
IPG product lines | Lasers
Goodwill
Goodwill, acquired during period				$ 0