Stock Appreciation Rights, Deferred Compensation and Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2025	Jul. 31, 2024	Apr. 30, 2025
Selling, general and administrative expenses
Equity based compensation arrangements [Roll Forward]
Expense related to equity based compensation arrangements	$ 1,000	$ 700
Stock Appreciation Rights
Equity based compensation arrangements [Roll Forward]
Award liability as of beginning of period	33,249
Change in fair value	867
Award liability as of end of period	34,116
Current liabilities related to plans	22,210		$ 20,798
Long-term liabilities related to plans	11,906		12,451
Deferred Compensation
Equity based compensation arrangements [Roll Forward]
Award liability as of beginning of period	1,485
Change in fair value	15
Award liability as of end of period	1,500
Current liabilities related to plans	1,500		1,485
Long-term liabilities related to plans	0		0
Redeemable Noncontrolling Interests
Equity based compensation arrangements [Roll Forward]
Award liability as of beginning of period	7,374
Change in fair value	71
Award liability as of end of period	7,445
Current liabilities related to plans	7,445		7,374
Long-term liabilities related to plans	$ 0		$ 0

Deferred Compensation Liability, Current and Noncurrent

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- Definition

Amount of expense on certain equity based compensation arrangements, such as stock appreciation rights, deferred compensation agreements and liabilities to noncontrolling interest holders.

+ References

No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-4

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

+ References

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- Definition

Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

+ References

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