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Debt - Assumed Through Acquisition (Details)
$ in Thousands, € in Millions
Dec. 21, 2020
EUR (€)
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
Jul. 01, 2022
USD ($)
loan
Coherent Inc.        
Debt Instrument [Line Items]        
Number of loans assumed | loan       3
Aggregate principal outstanding       $ 22,000
Line of credit | Foreign Line of Credit        
Debt Instrument [Line Items]        
Debt instrument, interest rate 1.55%      
Line of credit | Coherent Inc. | Foreign Line of Credit        
Debt Instrument [Line Items]        
Borrowing capacity | € € 24      
Debt agreement term 10 years      
1.30% Term loan        
Debt Instrument [Line Items]        
Aggregate principal outstanding   $ 1,324 $ 1,697  
Debt instrument, interest rate   1.30%    
1.30% Term loan | Coherent Inc.        
Debt Instrument [Line Items]        
Debt instrument, interest rate       1.30%
1.00% State of Connecticut term loan due 2023 | Coherent Inc.        
Debt Instrument [Line Items]        
Debt instrument, interest rate       1.00%