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

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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- Definition

Amount of interest capitalized during the period.

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- Definition

The net amount of operating interest income (expense).

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- Definition

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.

+ References

No definition available.

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- Definition

Fair value of the amount outstanding under the credit facility.

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- Definition

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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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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Long-term Debt and Finance Lease Obligations, Lines of Credit and Fair Value Disclosure - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022	Jun. 01, 2023	Apr. 30, 2023
Debt Instrument
Fair value of long-term debt	$ 1,348,000,000		$ 1,348,000,000			$ 1,437,000,000
Finance lease obligations	101,741,000		101,741,000			95,072,000
Interest income	4,476,000	$ 1,356,000	8,052,000	$ 1,356,000
Capitalized interest	686,000	$ 700,000	1,480,000	$ 1,281,000
Unsecured Revolving Credit Facility Due January 2024 \| Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	850,000,000		850,000,000
Fair value of amount outstanding	$ 0		$ 0			0
Unsecured Revolving Credit Facility Due January 2024 \| Revolving Credit Facility \| Federal Funds
Debt Instrument
Effective percentage	0.50%		0.50%
Unsecured Revolving Credit Facility Due January 2024 \| Revolving Credit Facility \| Secured Overnight Financing Rate
Debt Instrument
Effective percentage	0.10%		0.10%
Unsecured Revolving Credit Facility Due January 2024 \| Revolving Credit Facility \| Daily Simple Secured Overnight Financing Rate
Debt Instrument
Effective percentage	1.00%		1.00%
Unsecured Revolving Credit Facility Due January 2024 \| Minimum \| Revolving Credit Facility
Debt Instrument
Facility fee percentage			0.15%
Unsecured Revolving Credit Facility Due January 2024 \| Minimum \| Revolving Credit Facility \| Secured Overnight Financing Rate
Debt Instrument
Effective percentage	0.00%		0.00%
Basis spread on variable rate			1.10%
Unsecured Revolving Credit Facility Due January 2024 \| Minimum \| Revolving Credit Facility \| Daily Simple Secured Overnight Financing Rate
Debt Instrument
Effective percentage	1.00%		1.00%
Basis spread on variable rate			0.10%
Unsecured Revolving Credit Facility Due January 2024 \| Maximum \| Revolving Credit Facility
Debt Instrument
Facility fee percentage			0.30%
Unsecured Revolving Credit Facility Due January 2024 \| Maximum \| Revolving Credit Facility \| Secured Overnight Financing Rate
Debt Instrument
Basis spread on variable rate			1.70%
Unsecured Revolving Credit Facility Due January 2024 \| Maximum \| Revolving Credit Facility \| Daily Simple Secured Overnight Financing Rate
Debt Instrument
Basis spread on variable rate			0.70%
Unsecured Revolving Line of Credit \| Line of Credit
Debt Instrument
Maximum borrowing capacity					$ 50,000,000
Fair value of amount outstanding	$ 0		$ 0			$ 0
Unsecured Revolving Line of Credit \| Letter of Credit
Debt Instrument
Maximum borrowing capacity	$ 432,000		$ 432,000