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CONCENTRATION OF RISK (Tables) | 9 Months Ended
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Sep. 30, 2023
Risks and Uncertainties [Abstract] |
Revenues and Accounts Receivable From Our Largest Customers | Revenues and accounts receivable from the Company's largest customers were as follows (in thousands):
|  | % of Total Revenue for the Three Months Ended September 30, |  | % of Total Revenue for the Nine Months Ended September 30, |  | Accounts Receivable as of |
Customer |  | 2023 |  | 2022 |  | 2023 |  | 2022 |  | September 30, 2023 |
A |  | 45% |  | 46% |  | 37% |  | 42% |  | $ | 12,525 |
B |  | 20% |  | 23% |  | 23% |  | 26% |  | $ | 32,879 |
C |  | 12% |  | 12% |  | 15% |  | 14% |  | $ | 43,314 |
D |  | 8% |  | 4% |  | 10% |  | 4% |  | $ | 20,442 |
Revenues by Geographic Area | Revenues from outside of North America represented approximately 98% and 97% for the three months ended September 30, 2023 and 2022, respectively, and 98% and 97% for the nine-month periods ended September 30, 2023 and 2022, respectively. Revenues by geographic area are as follows (in thousands):
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
Country |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
South Korea |  | $ | 87,231 |  |  | $ | 100,555 |  |  | $ | 235,320 |  |  | $ | 269,338 |
China |  |  | 48,687 |  |  |  | 52,906 |  |  |  | 163,634 |  |  |  | 159,486 |
Japan |  |  | 2,019 |  |  |  | 2,011 |  |  |  | 5,175 |  |  |  | 4,456 |
Other non-U.S. locations |  |  | 541 |  |  |  | 976 |  |  |  | 3,856 |  |  |  | 1,991 |
Total non-U.S. locations |  |  | 138,478 |  |  |  | 156,448 |  |  |  | 407,985 |  |  |  | 435,271 |
United States |  |  | 2,599 |  |  |  | 4,108 |  |  |  | 10,124 |  |  |  | 12,316 |
Total revenue |  | $ | 141,077 |  |  | $ | 160,556 |  |  | $ | 418,109 |  |  | $ | 447,587 |
Long-Lived Assets (Net) by Geographic Area | , net by geographic area are as follows (in thousands):
|  | September 30, 2023 |  |  | December 31, 2022 |
United States |  | $ | 119,458 |  |  | $ | 117,255 |
Ireland |  |  | 40,860 |  |  |  | 20,270 |
Other |  |  | 14,320 |  |  |  | 5,920 |
Property and equipment, net |  | $ | 174,638 |  |  | $ | 143,445 |

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