v3.26.3
Operating Segments and Geographic Information - Summary of Reportable Segments (Details) - USD ($)
$ in Millions
 3 Months Ended
Oct. 03, 2026
Sep. 27, 2025
Information on reportable segments    
Total net revenue $ 469.3 $ 299.1
Cost of revenues 182.0 130.1
Research and development 69.5 56.0
Selling, general and administrative 129.5 104.2
Total operating expenses 205.6 161.4
Income from operations 81.7 7.6
Unallocated other expenses 81.7 7.6
Loss on debt extinguishment 0.0 (3.8)
Interest and other income, net 10.3 1.3
Interest expense (5.7) (7.4)
Income (loss) before income taxes and equity investment earnings (losses) 86.3 (2.3)
Product revenue    
Information on reportable segments    
Total net revenue 415.7 257.4
Service revenue    
Information on reportable segments    
Total net revenue 53.6 41.7
Operating Segments    
Information on reportable segments    
Total net revenue 469.3 299.1
Cost of revenues
Research and development
Selling, general and administrative
Other segment items
Total operating expenses
Income from operations 136.1 48.7
Unallocated other expenses 136.1 48.7
Operating Segments | Product revenue    
Information on reportable segments    
Total net revenue 415.7 257.4
Operating Segments | Service revenue    
Information on reportable segments    
Total net revenue 53.6 41.7
Operating Segments | Network and Service Enablement    
Information on reportable segments    
Total net revenue 376.1 216.0
Cost of revenues 127.3 79.7
Research and development 60.7 48.5
Selling, general and administrative 60.2 43.1
Other segment items 32.1 26.9
Total operating expenses 153.0 118.5
Income from operations $ 95.8 $ 17.8
Operating margin (percent) 25.50% 8.20%
Unallocated other expenses $ 95.8 $ 17.8
Operating Segments | Network and Service Enablement | Product revenue    
Information on reportable segments    
Total net revenue 322.5 174.3
Operating Segments | Network and Service Enablement | Service revenue    
Information on reportable segments    
Total net revenue 53.6 41.7
Operating Segments | Optical Security and Performance Products    
Information on reportable segments    
Total net revenue 93.2 83.1
Cost of revenues 40.0 39.5
Research and development 3.3 3.9
Selling, general and administrative 6.3 6.2
Other segment items 3.3 2.6
Total operating expenses 12.9 12.7
Income from operations $ 40.3 $ 30.9
Operating margin (percent) 43.20% 37.20%
Unallocated other expenses $ 40.3 $ 30.9
Operating Segments | Optical Security and Performance Products | Product revenue    
Information on reportable segments    
Total net revenue 93.2 83.1
Operating Segments | Optical Security and Performance Products | Service revenue    
Information on reportable segments    
Total net revenue 0.0 0.0
Other Items    
Information on reportable segments    
Income from operations (54.4) (41.1)
Unallocated other expenses $ (54.4) $ (41.1)