Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Additional Information (Details)

v3.21.4
SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Additional Information (Details) - segment
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting and Geographic Information        
Number of reportable segments     4  
Number of operating segments     6  
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Largest Customer        
Segment Reporting and Geographic Information        
Concentration risk, percentage 26.00% 14.00% 25.00% 14.00%
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Second Largest Customer        
Segment Reporting and Geographic Information        
Concentration risk, percentage 10.00% 14.00%   13.00%
Semiconductor Process Control        
Segment Reporting and Geographic Information        
Number of operating segments     2  
Specialty Semiconductor Process        
Segment Reporting and Geographic Information        
Number of operating segments     1  
PCB, Display and Component Inspection        
Segment Reporting and Geographic Information        
Number of operating segments     2  
Other Segment        
Segment Reporting and Geographic Information        
Number of operating segments     1