Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting and Geographic Information - Additional Information (Details)

v3.20.1
Segment Reporting and Geographic Information - Additional Information (Details) - segment
3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Segment Reporting and Geographic Information
Number of reportable segments 4
半导体工艺控制
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 Reporting and Geographic Information
Number of operating segments 1
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Customer One
Segment Reporting and Geographic Information
Concentration risk, percentage 20.00% 19.00% 20.00% 15.00%
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Customer Two
Segment Reporting and Geographic Information
Concentration risk, percentage 17.00% 13.00% 11.00%
Minimum | Customer Concentration Risk | Accounts Receivable | Customer One
Segment Reporting and Geographic Information
Concentration risk, percentage 10.00%
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