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Accounting Policies (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Apr. 30, 2024 | Apr. 30, 2023 | Jan. 31, 2024
Accounting Policies (Details) [Line Items] |  |  |
Income Taxes Paid | $ 100,000 | $ 4,500,000 |
Unrecognized Tax Benefits | 18,900,000 |  | $ 18,900,000
Income Tax Examination, Penalties and Interest Accrued | 77,100 |  | $ 70,000
Inventory Write-down | 800,000 |  |
Provision For Income Taxes [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Unrecognized Tax Benefits | $ 18,800,000 |  |
Cost of Sales [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Maximum Percentage Of Equity Ownership Interest Which May Be Considered For Equity Method Of Accounting | 20.00% |  |
Minimum [Member] | Building and Building Improvements [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |
Minimum [Member] | Fixtures And Equipment [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |
Maximum [Member] | Building and Building Improvements [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |
Maximum [Member] | Fixtures And Equipment [Member] |  |  |
Accounting Policies (Details) [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 20 years |  |

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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
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