Stock-Based Compensation - Summary of Stock Awards Activity (Details) - Stock Award Units $ / shares in Units, $ in Thousands	3 Months Ended
Apr. 30, 2022 USD ($) $ / shares shares
Number of Stock Award Units
Stock Award Units, Beginning Balance \| shares	296,283
Units granted \| shares	112,767
Units vested \| shares	(111,584)
Units forfeited \| shares	0
Stock Award Units, Ending Balance \| shares	297,466
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning Balance \| $ / shares	$ 26.39
Units granted, Weighted Average Grant Date Fair Value \| $ / shares	38.04
Units vested, Weighted Average Grant Date Fair Value \| $ / shares	31.84
Units forfeited, Weighted Average Grant Date Fair Value \| $ / shares	0
Weighted Average Grant Date Fair Value Ending Balance \| $ / shares	$ 28.76
Weighted-Average Remaining Contractual Term (years)
Units outstanding, Weighted-Average Remaining Contractual Term (years)	2 years 6 months
Aggregate Intrinsic Value
Units outstanding, Aggregate Intrinsic Value \| $	$ 10,700

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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