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Operating Segments and Geographic Information - Schedule of Percentage of Total Net Revenue Attributable to Reportable Segments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Apr. 03, 2021
Mar. 28, 2020
Apr. 03, 2021
Mar. 28, 2020
Concentration Risk        
Net revenue $ 419.5 $ 402.8 $ 1,350.7 $ 1,310.5
Product offerings | OpComms        
Concentration Risk        
Net revenue 387.9 359.3 1,265.5 1,184.8
Product offerings | OpComms | Telecom and Datacom        
Concentration Risk        
Net revenue 255.8 251.0 803.3 765.4
Product offerings | OpComms | Consumer and Industrial        
Concentration Risk        
Net revenue 132.1 108.3 462.2 419.4
Product offerings | Lasers        
Concentration Risk        
Net revenue $ 31.6 $ 43.5 $ 85.2 $ 125.7
Product offerings | Revenue | OpComms        
Concentration Risk        
Concentration risk, percentage 92.50% 89.20% 93.70% 90.40%
Product offerings | Revenue | OpComms | Telecom and Datacom        
Concentration Risk        
Concentration risk, percentage 61.00% 62.30% 59.50% 58.40%
Product offerings | Revenue | OpComms | Consumer and Industrial        
Concentration Risk        
Concentration risk, percentage 31.50% 26.90% 34.20% 32.00%
Product offerings | Revenue | Lasers        
Concentration Risk        
Concentration risk, percentage 7.50% 10.80% 6.30% 9.60%