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REVENUE (Tables) | 3 Months Ended
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Mar. 31, 2021
REVENUE |
Summary of deferred revenue, | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ |  | 2021 |  | 2020
Deferred revenue | ​ | $ | 8,340 | ​ | $ | 8,671
Schedule of disaggregation of revenue | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2021 |  | 2020
Semiconductor Equipment | ​ | $ | 180,716 | ​ | $ | 133,625
Industrial and Medical | ​ |  | 78,415 | ​ |  | 61,979
Data Center Computing | ​ | ​ | 59,154 | ​ | ​ | 86,183
Telecom and Networking | ​ | ​ | 33,335 | ​ | ​ | 33,669
Total | ​ | $ | 351,620 | ​ | $ | 315,456
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2021 |  | 2020
Product | ​ | $ | 318,879 | ​ | $ | 289,361
Services | ​ | ​ | 32,741 |  | ​ | 26,095
Total | ​ | $ | 351,620 |  | $ | 315,456
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2021 |  | 2020
United States | ​ | $ | 131,598 | ​ | $ | 116,697
North America (excluding United States) | ​ | ​ | 26,247 |  | ​ | 47,634
Asia | ​ | ​ | 149,591 |  | ​ | 110,975
Europe | ​ | ​ | 40,422 |  | ​ | 39,136
Other | ​ | ​ | 3,762 |  | ​ | 1,014
Total | ​ | $ | 351,620 |  | $ | 315,456
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2021 |  | 2020
Product and service revenue recognized at point in time | ​ | $ | 351,393 | ​ | $ | 315,281
Extended warranty and service contracts recognized over time | ​ |  | 227 | ​ |  | 175
Total | ​ | $ | 351,620 | ​ | $ | 315,456

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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6935-107765 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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