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Allowance for Doubtful Accounts (Accounts Receivable and Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands | Jul. 31, 2020 | Jan. 31, 2020
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Accounts receivable, gross | $ 287,710 |
Allowance for doubtful accounts | (11,208) | $ (710)
Accounts receivable, net | 276,502 |
Wholesale |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, gross | 284,031 |
Allowance for doubtful accounts | (11,178) | (628)
Accounts receivable, net | 272,853 |
Retail |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, gross | 3,679 |
Allowance for doubtful accounts | (30) | $ (82)
Accounts receivable, net | $ 3,649 |

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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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