Equity Compensation and Employee Benefit Plans - 1995 Stock Option Plan (Details) - 1995 Stock Option Plan shares in Millions	12 Months Ended
Jan. 31, 2026 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance, authorized (in shares)	383.4
Number of shares available for future issuance (in shares)	40.5
Award expiration period	10 years
Minimum \| Incentive Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Minimum \| Performance-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target number of shares	0.00%
Minimum \| Performance-Based \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award service period	3 years
Maximum \| Incentive Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Maximum \| Performance-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target number of shares	250.00%
Maximum \| Performance-Based \| Executive Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award service period	5 years

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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