Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details)

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GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Jun. 30, 2024
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets     $ 230,400    
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] Impairment of goodwill and purchased intangible assets Impairment of goodwill and purchased intangible assets      
Intangible asset impairment charge $ 8,700 $ 26,400      
Impairment of goodwill and purchased intangible assets 239,100 219,000 239,100 $ 219,000  
Amortization of intangible assets 58,900 59,400 115,600 $ 122,700  
Semiconductor Process Control:          
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets     0    
Non-deductible impairment of goodwill 277,600   277,600   $ 277,600
Specialty Semiconductor Process          
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets     0    
Non-deductible impairment of goodwill         144,200
PCB And Component Inspection          
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets     230,400    
Non-deductible impairment of goodwill 70,500   $ 70,500   $ 70,500
PCB And Component Inspection          
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets $ 230,400 $ 192,600      
PCB And Component Inspection | Valuation, Income Approach          
Goodwill [Line Items]          
Reporting unit, percentage of fair value 75.00%   75.00%    
PCB And Component Inspection | Valuation, Market Approach          
Goodwill [Line Items]          
Reporting unit, percentage of fair value 25.00%   25.00%    
Specialty Semiconductor Process          
Goodwill [Line Items]          
Impairment of goodwill and purchased intangible assets $ 0