Annual report [Section 13 and 15(d), not S-K Item 405]

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details)

v3.25.2
GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details)
 3 Months Ended 12 Months Ended
Feb. 28, 2025
USD ($)
Feb. 29, 2024
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
reporting_unit
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets $ 0 $ 0       $ 230,400,000 $ 263,074,000  
Number of reporting units | reporting_unit         2      
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]     Purchased intangible assets, net   Purchased intangible assets, net      
Impairment charge     $ 8,700,000   $ 26,400,000      
Impairment of goodwill and purchased intangible assets     239,100,000   219,000,000.0 239,100,000 289,474,000 $ 0
Impairment of intangible assets           0 0  
Amortization expense           220,400,000 239,300,000 260,600,000
Specialty Semiconductor Process                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets     0     0 0  
Goodwill accumulated impairment loss             144,200,000 144,200,000
Semiconductor Process Control                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets           0 0  
Goodwill accumulated impairment loss           277,600,000 277,600,000 277,600,000
PCB and Component Inspection                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets           230,400,000 263,074,000  
Goodwill accumulated impairment loss           $ 70,500,000 $ 70,500,000 $ 112,500,000
PCB                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets     $ 230,400,000          
PCB And Display                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets         $ 192,600,000      
PCB And Display | Valuation, Income Approach                
Goodwill [Line Items]                
Reporting unit, percentage of fair value           75.00%    
PCB And Display | Valuation, Market Approach                
Goodwill [Line Items]                
Reporting unit, percentage of fair value           25.00%    
Display                
Goodwill [Line Items]                
Impairment of goodwill and purchased intangible assets       $ 70,500,000