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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 |
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 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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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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