Percentage points added to compute the variable rate on the debt instrument.

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Margin rate over reference rate used to calculate the lenders base rate.

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The minimum incremental amount by which the entity may request an optional increase to the maximum borrowing capacity under the revolving credit facility.

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The total amount by which the entity may request an optional increase to the maximum borrowing capacity under the revolving credit facility. This may consist of one request or several requests in minimum increments as specified under the revolving credit agreement.

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Amount of amortization expense attributable to debt issuance costs.

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Face (par) amount of debt instrument at time of issuance.

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The average effective interest rate during the reporting period.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt and Available Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021	Apr. 30, 2022	May 30, 2019
Long-term Debt, by Current and Noncurrent [Abstract]
Short-term portion of long-term debt	$ 25,000		$ 25,000		$ 18,750
Long-term debt, less current portion	978,683		978,683		768,277
Total debt	1,003,683		1,003,683		787,027
Unamortized debt issuance costs	300		$ 300		300
Amended and Restated RCA
Debt and Available Credit Facilities [Abstract]
Term of credit facility			5 years
Amortization of debt issuance costs	300	$ 300	$ 500	$ 500
Term Loan A Facility
Debt and Available Credit Facilities [Abstract]
Term of credit facility			5 years
Term Loan A Facility \| Amended and Restated RCA
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt, less current portion	191,925		$ 191,925		204,343
Debt and Available Credit Facilities [Abstract]
Debt instrument, face amount						$ 250,000
Revolving Credit Facility
Debt and Available Credit Facilities [Abstract]
Term of credit facility			5 years
Revolving Credit Facility \| Amended and Restated RCA
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt, less current portion	786,758		$ 786,758		$ 563,934
Debt and Available Credit Facilities [Abstract]
Amount of financing available under credit facilities						$ 1,250,000
Revolving Credit Facility \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America
Debt and Available Credit Facilities [Abstract]
Optional credit limit increase available on request	500,000		500,000
Minimum increments in which optional credit limit increase may be requested	50,000		50,000
Existing credit commitments	$ 464,200		$ 464,200
Revolving Credit Facility \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Minimum
Debt and Available Credit Facilities [Abstract]
Line of credit facility fee percentage			0.15%
Revolving Credit Facility \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Maximum
Debt and Available Credit Facilities [Abstract]
Line of credit facility fee percentage			0.25%
Revolving Credit Facility \| LIBOR \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Minimum
Debt and Available Credit Facilities [Abstract]
Applicable margin			0.98%
Revolving Credit Facility \| LIBOR \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Maximum
Debt and Available Credit Facilities [Abstract]
Applicable margin			1.50%
Revolving Credit Facility \| Base Rate \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Minimum
Debt and Available Credit Facilities [Abstract]
Applicable margin			0.00%
Revolving Credit Facility \| Base Rate \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America \| Maximum
Debt and Available Credit Facilities [Abstract]
Applicable margin			0.50%
Revolving Credit Facility \| Federal Funds Effective Rate \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America
Debt and Available Credit Facilities [Abstract]
Margin rate over reference rate used in determining base rate			0.50%
Revolving Credit Facility \| Eurocurrency Rate \| Amended and Restated RCA \| Syndicate Bank Group led by Bank of America
Debt and Available Credit Facilities [Abstract]
Margin rate over reference rate used in determining base rate			1.00%
Line of Credit
Debt and Available Credit Facilities [Abstract]
Average interest rates on total debt outstanding	3.70%	1.92%	3.31%	1.97%
Weighted average interest rates	3.99%		3.99%		2.55%