Stock-based Compensation - Summary of Non-Vested Restricted Stock Awards and Performance Unit Awards (Details) shares in Thousands	12 Months Ended
Apr. 30, 2022 $ / shares shares
Restricted Stock Awards
Shares
Outstanding, Beginning balance (in shares) \| shares	54
Granted (in shares) \| shares	32
Vested (in shares) \| shares	(53)
Forfeitures and cancellations (in shares) \| shares	(6)
Outstanding, Ending balance (in shares) \| shares	27
Weighted- Average Grant Date Fair Value
Beginning balance (in usd per share) \| $ / shares	$ 30.63
Granted (in usd per share) \| $ / shares	31.86
Vested (in usd per share) \| $ / shares	30.45
Forfeitures and cancellations (in usd per share) \| $ / shares	33.29
Ending balance (in usd per share) \| $ / shares	$ 31.86
Restricted Stock Units
Shares
Outstanding, Beginning balance (in shares) \| shares	1,241
Granted (in shares) \| shares	417
Vested (in shares) \| shares	(586)
Forfeitures and cancellations (in shares) \| shares	(70)
Outstanding, Ending balance (in shares) \| shares	1,002
Weighted- Average Grant Date Fair Value
Beginning balance (in usd per share) \| $ / shares	$ 25.65
Granted (in usd per share) \| $ / shares	30.79
Vested (in usd per share) \| $ / shares	26.42
Forfeitures and cancellations (in usd per share) \| $ / shares	26.92
Ending balance (in usd per share) \| $ / shares	$ 27.24
Performance Unit Awards
Shares
Outstanding, Beginning balance (in shares) \| shares	288
Granted (in shares) \| shares	150
Vested (in shares) \| shares	0
Forfeitures and cancellations (in shares) \| shares	0
Outstanding, Ending balance (in shares) \| shares	438
Weighted- Average Grant Date Fair Value
Beginning balance (in usd per share) \| $ / shares	$ 22.94
Granted (in usd per share) \| $ / shares	29.67
Vested (in usd per share) \| $ / shares	0
Forfeitures and cancellations (in usd per share) \| $ / shares	0
Ending balance (in usd per share) \| $ / shares	$ 26.14

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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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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-Publisher FASB
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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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