Balance Sheet Details - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2023	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022	Nov. 07, 2023	Aug. 03, 2022
Property, Plant and Equipment
Accounts receivable allowance for credit losses (less than)		$ 0.2	$ 0.1
Amortization of inventory fair value adjustment in connection with acquisition		8.3	17.8	$ 0.0
Purchase price for property		133.0	128.5	91.2
Depreciation expense		110.6	106.6	$ 81.6
Land and Building In Caswell UK
Property, Plant and Equipment
Purchase price for property	$ 23.3
Capitalized asset acquisition cost	1.8
Impairment of real estate	0.3
Property, plant and equipment, net	24.8
Decrease in operating lease right-of-use assets, net	4.8
Decrease in operating lease liability current	2.4
Decrease in operating lease liability non-current	2.7
Land and Building In Caswell UK | Land
Property, Plant and Equipment
Property, plant and equipment, net	11.8
Land and Building In Caswell UK | Buildings and improvement
Property, Plant and Equipment
Property, plant and equipment, net	$ 13.0
Cloud Light Technology Limited
Property, Plant and Equipment
Inventories					$ 71.8	$ 84.3
Amortization of inventory fair value adjustment in connection with acquisition		$ 8.0
Property, plant and equipment, net					62.5
Operating lease right-of-use assets, net					$ 3.7
Cloud Light Technology Limited | Minimum
Property, Plant and Equipment
Leases remaining term (in years)					1 year 6 months
Cloud Light Technology Limited | Maximum
Property, Plant and Equipment
Leases remaining term (in years)					2 years 7 months 6 days
NeoPhotonics Corporation
Property, Plant and Equipment
Amortization of inventory fair value adjustment in connection with acquisition			$ 17.8