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GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION | 12 Months Ended
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Dec. 31, 2020
GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION |
GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION | NOTE 20. GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION The following table summarizes sales, and percentages of sales, by customers that individually accounted for 10% or more of our sales: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Years Ended December 31,
​ |  | ​ | 2020 |  | 2019 |  | 2018
Applied Materials, Inc. | ​ | ​ | $ | 248,350 |  | 17.5 | % | ​ | $ | 164,724 |  | 20.9 | % | ​ | $ | 258,027 |  | 35.9 | %
Lam Research | ​ | ​ |  | 141,778 |  | 10.0 | % | ​ |  | 88,251 |  | 11.2 | % | ​ |  | 109,005 |  | 15.2 | %
​ The following table summarizes the accounts receivable balances, and percentages of the total accounts receivable, for customers that individually accounted for 10% or more of accounts receivable: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31,
​ | ​ | 2020 | ​ | ​ | 2019 | ​
Applied Materials, Inc. | ​ | $ | 33,402 |  | 14.2 | % |  | $ | 36,849 |  | 14.9 | %
Nidec Motor Corporation | ​ | ​ | 24,344 | ​ | 10.4 | % |  | ​ | 38,071 | ​ | 15.4 | %
​ Our sales to Applied Materials, Inc., Lam Research Corp., and Nidec Corporation include precision power products used in semiconductor processing and solar and flat panel display. No other customer accounted for 10% or more of our sales or accounts receivable balances during these periods. The following table summarizes long-lived assets by geographic area: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2020 |  | 2019
United States | ​ | $ | 253,115 | ​ | $ | 239,511
Asia | ​ |  | 283,549 | ​ |  | 301,020
Europe | ​ |  | 60,847 | ​ |  | 59,925
Total | ​ | $ | 597,511 | ​ | $ | 600,456
​ Long-lived assets include property and equipment, operating lease right-of-use assets, goodwill, and other intangible assets.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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