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Restructuring and Related Charges - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Mar. 28, 2020
Mar. 30, 2019
Restructuring and Related Charges        
Restructuring and related charges $ 2.7 $ 21.1 $ 4.9 $ 30.2
Lithium Niobate        
Restructuring and Related Charges        
Restructuring and related charges   $ 21.1   30.2
Lithium Niobate | Severance charges        
Restructuring and Related Charges        
Restructuring and related charges       18.0
Lithium Niobate | Lease restructuring        
Restructuring and Related Charges        
Restructuring and related charges       $ 1.6