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Income Taxes (Tables) | 9 Months Ended
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Oct. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] | A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (amounts in thousands):
|  | Nine Months Ended October 31, |
|  | 2023 |  |  | 2022 |
Unrecognized tax benefits, beginning of period |  | $ | 19,088 |  |  | $ | 16,781 |
Changes for prior years’ tax positions |  |  | 9 |  |  |  | 94 |
Changes for current year tax positions |  |  | - |  |  |  | - |
Unrecognized tax benefits, end of period |  | $ | 19,097 |  |  | $ | 16,875 |

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- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A + Details
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