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Business and Summary of Significant Accounting Policies - Accounts Receivable, Net (Details) - USD ($) $ in Millions | Jan. 31, 2021 | Jan. 31, 2020
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Accounting Policies [Abstract] |  |
Trade accounts receivable | $ 701.3 | $ 716.1
Less: Allowance for credit losses | (3.8) | (4.9)
Product returns reserve | (0.7) | (0.5)
Partner programs and other obligations | (53.7) | (58.4)
Accounts receivable, net | $ 643.1 | $ 652.3

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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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