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Stock-Based Compensation Plans - Summary of Restricted Share Units Activity (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Jul. 31, 2022	Jan. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested or expected to vest, weighted-average exercise price (in dollars per share)	$ 46.34
Vested or expected to vest, weighted-average remaining contractual life (Year)	4 years 7 months 6 days
Vested or expected to vest, aggregate intrinsic value	$ 37.4
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-Average Remaining Contractual, PSU (Year)	5 years 1 month 6 days	5 years
Aggregate Intrinsic Value, PSU	$ 30.3
Aggregate Intrinsic Value, PSU	$ 32.9	$ 30.3
Number of PSUs Granted (in shares)	63,651
PSUs Granted, Weighted-Average Granted Date Fair Value (in dollars per share)	$ 63.05
Number of Units Outstanding (in shares)	474,631	410,980
Weighted-Average Grant Date Fair Value, PSU (in dollars per share)	$ 33.24	$ 29.17
Vested or expected to vest, RSU (in shares)	474,631
Vested or expected to vest, weighted-average exercise price (in dollars per share)	$ 33.24
Vested or expected to vest, weighted-average remaining contractual life (Year)	5 years 1 month 6 days
Vested or expected to vest, aggregate intrinsic value	$ 32.9
Exercisable, number of units (in shares)	355,675
Exercisable, PSU weighted-average granted date fair value (in dollars per share)	$ 24.17
Exercisable, Weighted-Average Remaining Contractual, PSU (Year)	3 years 10 months 24 days
Exercisable, Aggregate Intrinsic Value, PSU	$ 24.6

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Intrinsic value of equity-based compensation awards exercisable. Excludes stock and unit options.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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