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Segment Information (Tables) | 9 Months Ended
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Sep. 30, 2023
Concentration risk |
Revenue from external customer by geographic regions | Revenue from customers in the geographic regions based on the location of contracting parties was as follows:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
(In thousands) |  | 2023 |  | 2022 |  | 2023 |  | 2022
USA |  | $ | 32,347 |  |  | $ | 70,284 |  |  | $ | 131,415 |  |  | $ | 193,253 |
South Korea |  | 38,228 |  |  | 1,081 |  |  | 100,985 |  |  | 5,118 |
Singapore |  | 16,325 |  |  | 10,498 |  |  | 42,371 |  |  | 50,262 |
Other |  | 18,398 |  |  | 30,381 |  |  | 64,121 |  |  | 83,793 |
Total |  | $ | 105,298 |  |  | $ | 112,244 |  |  | $ | 338,892 |  |  | $ | 332,426 |
Accounts receivable |
Concentration risk |
Schedule of customer accounts representing 10% or more than 10% of total balance | Accounts receivable from the Company’s major customers representing 10% or more of total accounts receivable at September 30, 2023 and December 31, 2022, respectively, was as follows:
|  | As of
Customer |  | September 30, 2023 |  | December 31, 2022
Customer 1 |  | 47 | % |  | *
Customer 2 |  | 24 | % |  | 14 | %
Customer 3 |  | * |  | 23 | %
Customer 4 |  | * |  | 16 | %
_________________________________________ * Customer accounted for less than 10% of total accounts receivable in the period.
Revenue |
Concentration risk |
Schedule of customer accounts representing 10% or more than 10% of total balance | Revenue from the Company’s major customers representing 10% or more of total revenue for the three and nine months ended September 30, 2023 and 2022, respectively, was as follows:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
Customer |  | 2023 |  | 2022 |  | 2023 |  | 2022
Customer A |  | 29 | % |  | * |  | 26 | % |  | *
Customer B |  | 25 | % |  | 20 | % |  | 18 | % |  | 21 | %
Customer C |  | * |  | 20 | % |  | * |  | 16 | %
Customer D |  | * |  | 12 | % |  | * |  | 13 | %
__________________________________________ * Customer accounted for less than 10% of total revenue in the period.

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