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Goodwill (Tables) | 3 Months Ended
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Apr. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table summarizes the changes in the carrying amount of goodwill for the three months ended April 30, 2021, (in millions):
Balance as of January 31, 2021 | $ | 2,855.7 |  |  |
Less: accumulated impairment losses as of January 31, 2021 | (149.2) |  |  |
Net balance as of January 31, 2021 | 2,706.5 |  |  |
Additions arising from acquisitions during the period | 767.2 |  |  |
Effect of foreign currency translation | 10.3 |  |  |
Balance as of April 30, 2021 | $ | 3,484.0 |  |  |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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