Annual report pursuant to Section 13 and 15(d)

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

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GOODWILL AND PURCHASED INTANGIBLE ASSETS - Schedule of Goodwill (Details)
 3 Months Ended 12 Months Ended
Apr. 24, 2020
USD ($)
Mar. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
reporting_unit
segment
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Goodwill          
Number of reportable segments | segment     4    
Number of reporting units | reporting_unit     6    
Goodwill          
Goodwill, beginning balance     $ 2,211,858,000 $ 354,698,000  
Acquired goodwill $ 2,200,000   56,180,000 1,818,951,000  
Goodwill adjustments     34,134,000 38,216,000  
Reallocation due to change in segments       0  
Foreign currency adjustment     (121,000) (7,000)  
Goodwill impairment     (256,649,000) 0 $ 0
Goodwill, ending balance     2,045,402,000 2,211,858,000 354,698,000
Wafer Inspection          
Goodwill          
Goodwill, beginning balance     0 281,005,000  
Acquired goodwill     0 0  
Goodwill adjustments     0 0  
Reallocation due to change in segments       (281,005,000)  
Foreign currency adjustment     0  
Goodwill impairment     0    
Goodwill, ending balance     0 0 281,005,000
Patterning          
Goodwill          
Goodwill, beginning balance     0 53,255,000  
Acquired goodwill     0 26,362,000  
Goodwill adjustments     0 0  
Reallocation due to change in segments       (79,617,000)  
Foreign currency adjustment     0 0  
Goodwill impairment     0    
Goodwill, ending balance     0 0 53,255,000
GSS          
Goodwill          
Goodwill, beginning balance     25,908,000 8,039,000  
Acquired goodwill     0 17,869,000  
Goodwill adjustments     0 0  
Reallocation due to change in segments       0  
Foreign currency adjustment     0 0  
Goodwill impairment     0    
Goodwill, ending balance     25,908,000 25,908,000 8,039,000
SPC Others          
Goodwill          
Goodwill, beginning balance     0 12,399,000  
Acquired goodwill     0 1,176,000  
Goodwill adjustments     0 0  
Reallocation due to change in segments       (13,575,000)  
Foreign currency adjustment     0 0  
Goodwill impairment     0    
Goodwill, ending balance     0 0 12,399,000
Wafer Inspection and Patterning          
Goodwill          
Goodwill, beginning balance     360,615,000 0  
Acquired goodwill     56,180,000 0  
Goodwill adjustments     166,000 0  
Reallocation due to change in segments       360,622,000  
Foreign currency adjustment     (121,000) (7,000)  
Goodwill impairment     0    
Goodwill, ending balance     416,840,000 360,615,000 0
Specialty Semiconductor Process          
Goodwill          
Goodwill, beginning balance     821,842,000 0  
Acquired goodwill     0 796,442,000  
Goodwill adjustments     4,195,000 25,400,000  
Reallocation due to change in segments       0  
Foreign currency adjustment     0 0  
Goodwill impairment   $ (144,200,000) (144,179,000)    
Goodwill, ending balance     681,858,000 821,842,000 0
PCB and Display          
Goodwill          
Goodwill, beginning balance     989,918,000 0  
Acquired goodwill     0 977,102,000  
Goodwill adjustments     29,773,000 12,816,000  
Reallocation due to change in segments       0  
Foreign currency adjustment     0 0  
Goodwill impairment   $ (112,500,000) (112,470,000)    
Goodwill, ending balance     907,221,000 989,918,000 0
Component Inspection          
Goodwill          
Goodwill, beginning balance     13,575,000 0  
Acquired goodwill     0 0  
Goodwill adjustments     0 0  
Reallocation due to change in segments       13,575,000  
Foreign currency adjustment     0 0  
Goodwill impairment     0    
Goodwill, ending balance     13,575,000 13,575,000 $ 0
Other Reporting Units          
Goodwill          
Goodwill, beginning balance     0    
Goodwill, ending balance     $ 0 $ 0