Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Schedule of Goodwill (Details)

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GOODWILL AND PURCHASED INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2023
Dec. 31, 2023
Jun. 30, 2023
Goodwill [Line Items]      
Goodwill $ 2,813,023 $ 2,813,023 $ 2,813,039
Accumulated impairment losses (726,819) (726,819) (534,219)
Goodwill [Roll Forward]      
Beginning balance   2,278,820  
Goodwill impairment   (192,600)  
Reallocation due to change in reporting units   0  
Foreign currency adjustments   (16)  
Ending balance 2,086,204 2,086,204  
Wafer Inspection and Patterning      
Goodwill [Line Items]      
Goodwill 1,004,684 1,004,684 1,004,700
Accumulated impairment losses (277,570) (277,570) (277,570)
Goodwill [Roll Forward]      
Beginning balance   727,130  
Goodwill impairment   0  
Reallocation due to change in reporting units   0  
Foreign currency adjustments   (16)  
Ending balance 727,114 727,114  
Global Service and Support (“GSS”)      
Goodwill [Line Items]      
Goodwill 25,908 25,908 25,908
Accumulated impairment losses 0 0 0
Goodwill [Roll Forward]      
Beginning balance   25,908  
Goodwill impairment   0  
Reallocation due to change in reporting units   0  
Foreign currency adjustments   0  
Ending balance 25,908 25,908  
Specialty Semiconductor Process      
Goodwill [Line Items]      
Goodwill 826,037 826,037 826,037
Accumulated impairment losses (144,179) (144,179) (144,179)
Goodwill [Roll Forward]      
Beginning balance   681,858  
Goodwill impairment   0  
Reallocation due to change in reporting units   0  
Foreign currency adjustments   0  
Ending balance 681,858 681,858  
PCB and Display      
Goodwill [Line Items]      
Goodwill 305,070 305,070 942,819
Accumulated impairment losses (305,070) (305,070) (112,470)
Goodwill [Roll Forward]      
Beginning balance   830,349  
Goodwill impairment (192,600) (192,600)  
Reallocation due to change in reporting units   (637,749)  
Foreign currency adjustments   0  
Ending balance 0 0  
PCB      
Goodwill [Line Items]      
Goodwill 567,275 567,275 0
Accumulated impairment losses 0 0 0
Goodwill [Roll Forward]      
Beginning balance   0  
Goodwill impairment   0  
Reallocation due to change in reporting units   567,275  
Foreign currency adjustments   0  
Ending balance 567,275 567,275  
Display      
Goodwill [Line Items]      
Goodwill 70,474 70,474 0
Accumulated impairment losses 0 0 0
Goodwill [Roll Forward]      
Beginning balance   0  
Goodwill impairment   0  
Reallocation due to change in reporting units   70,474  
Foreign currency adjustments   0  
Ending balance 70,474 70,474  
Component Inspection      
Goodwill [Line Items]      
Goodwill 13,575 13,575 13,575
Accumulated impairment losses 0 0 $ 0
Goodwill [Roll Forward]      
Beginning balance   13,575  
Goodwill impairment   0  
Reallocation due to change in reporting units   0  
Foreign currency adjustments   0  
Ending balance $ 13,575 $ 13,575