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Business Segment and Geographic Region Information (Tables) | 12 Months Ended
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Dec. 31, 2021
Business Segment and Geographic Region Information |
Schedule of revenue by product lines | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31, |
​ |  | 2021 |  | 2020 |  | 2019 |
​ | ​ | (in thousands) |
Ion implantation systems and services | ​ | $ | 645,504 | ​ | $ | 456,788 | ​ | $ | 326,029 | ​
Other systems and services | ​ |  | 16,924 | ​ |  | 17,772 | ​ |  | 16,929 | ​
Total revenue | ​ | $ | 662,428 | ​ | $ | 474,560 | ​ | $ | 342,958 | ​
Schedule of revenue and long-lived assets by geographic region | ​
| ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Long-Lived |
​ | ​ | Revenue | ​ | Assets |
​ | ​ | (in thousands) |
2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 519,408 | ​ | $ | 63,590 | ​
Europe | ​ |  | 36,622 | ​ |  | 191 | ​
Asia Pacific | ​ |  | 106,398 | ​ |  | 3,194 | ​
​ | ​ | $ | 662,428 | ​ | $ | 66,975 | ​
2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 351,069 | ​ | $ | 67,521 | ​
Europe | ​ |  | 28,977 | ​ |  | 235 | ​
Asia Pacific | ​ |  | 94,514 | ​ |  | 547 | ​
​ | ​ | $ | 474,560 | ​ | $ | 68,303 | ​
2019 | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 256,092 | ​ | $ | 67,336 | ​
Europe | ​ |  | 28,743 | ​ |  | — | ​
Asia Pacific | ​ |  | 58,123 | ​ |  | 748 | ​
​ | ​ | $ | 342,958 | ​ | $ | 68,084 | ​

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 + Details
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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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