Equity Compensation - Summary of ESPP Activity (Details) - ESPP - 1998 Employee Qualified Stock Purchase Plan - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued shares (in shares)	363	361	740	851
Average price of issued shares (in usd per share)	$ 158.78	$ 133.00	$ 166.44	$ 130.13
Weighted average grant date fair value of shares granted under the ESPP (in usd per share)	$ 66.43	$ 83.75	$ 67.77	$ 84.21

Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued, Average Price

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- Definition

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.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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