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Segment Reporting (Tables) | 6 Months Ended
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Jul. 31, 2023
Segment Reporting [Abstract] |
Company's Revenue by Geographic Region Based on Bill-to Location | The following table sets forth the Company’s revenue by geographic region based on bill-to location for the periods indicated. Certain prior quarter amounts of revenue by geographic region have been adjusted to reflect the appropriate bill-to location for the related revenue. These adjustments did not impact the total revenues in any of the periods presented.
|  | Three Months Ended July 31, |  |  | Six Months Ended July 31, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
|  | (in thousands) |
Taiwan |  | $ | 33,482 |  |  | $ | 48,132 |  |  | $ | 64,116 |  |  | $ | 99,289 |
Asia Pacific |  |  | 15,473 |  |  |  | 17,858 |  |  |  | 31,078 |  |  |  | 39,415 |
Europe |  |  | 2,673 |  |  |  | 4,536 |  |  |  | 6,189 |  |  |  | 13,162 |
North America other than United States |  |  | 8,498 |  |  |  | 5,991 |  |  |  | 19,375 |  |  |  | 13,060 |
United States |  |  | 1,995 |  |  |  | 4,367 |  |  |  | 3,505 |  |  |  | 6,263 |
Total revenue |  | $ | 62,121 |  |  | $ | 80,884 |  |  | $ | 124,263 |  |  | $ | 171,189 |

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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-41 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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