Business and Summary of Significant Accounting Policies - Cloud Computing Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Property, Plant and Equipment [Line Items]
Capitalized software development costs	$ 0.0	$ 0.0
Amortization	53.0	42.0	$ 24.0
Cloud-based Software Hosting Arrangements
Property, Plant and Equipment [Line Items]
Capitalized software development costs	327.0	254.0
Accumulated amortization	$ 136.0	$ 83.0

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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-Name Accounting Standards Codification
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-Topic 230
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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
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Amount of accumulated amortization of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 340
-SubTopic 40
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Name Accounting Standards Codification
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