Debt and Available Credit Facilities - Amended and Restated CA (Details) - USD ($)		3 Months Ended
	Nov. 30, 2022	Jul. 31, 2024	Jul. 31, 2023	Apr. 30, 2024
Amended and Restated RCA
Line of Credit Facility [Line Items]
Term of credit facility		5 years
Amortization of debt issuance costs		$ 300,000	$ 300,000
Revolving Credit Facility Through November 2027
Line of Credit Facility [Line Items]
Term of credit facility		18 months
Revolving Credit Facility | Amended and Restated RCA
Line of Credit Facility [Line Items]
Term of credit facility	5 years
Credit commitments, principal amount	$ 1,115,000,000
Existing credit commitments		$ 388,100,000
Revolving Credit Facility | Amended and Restated RCA | Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Optional Credit Limit Increase Available On Request	500,000,000
Value of minimum increments	$ 50,000,000
Revolving Credit Facility | Amended and Restated RCA | Syndicate Bank Group led by Bank of America | Base Rate
Line of Credit Facility [Line Items]
Margin rate over reference rate used in determining base rate	0.50%
Revolving Credit Facility | Amended and Restated RCA | Syndicate Bank Group led by Bank of America | Daily Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate over reference rate used in determining base rate	1.00%
Revolving Credit Facility | Amended and Restated RCA | Minimum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate (as a percent)	0.10%
Revolving Credit Facility | Amended and Restated RCA | Minimum | Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.15%
Revolving Credit Facility | Amended and Restated RCA | Minimum | Syndicate Bank Group led by Bank of America | SOFR, SONIA, and EURIBOR-Based Rates
Line of Credit Facility [Line Items]
Applicable margin	0.98%
Revolving Credit Facility | Amended and Restated RCA | Minimum | Syndicate Bank Group led by Bank of America | Base Rate
Line of Credit Facility [Line Items]
Applicable margin	0.00%
Revolving Credit Facility | Amended and Restated RCA | Maximum | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Margin rate (as a percent)	0.25%
Revolving Credit Facility | Amended and Restated RCA | Maximum | Syndicate Bank Group led by Bank of America
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.25%
Revolving Credit Facility | Amended and Restated RCA | Maximum | Syndicate Bank Group led by Bank of America | SOFR, SONIA, and EURIBOR-Based Rates
Line of Credit Facility [Line Items]
Applicable margin	1.50%
Revolving Credit Facility | Amended and Restated RCA | Maximum | Syndicate Bank Group led by Bank of America | Federal Funds Effective Rate
Line of Credit Facility [Line Items]
Applicable margin	0.50%
Term Loan A Facility | Amended and Restated RCA
Line of Credit Facility [Line Items]
Term of credit facility	5 years
Debt instrument, face amount	$ 200,000,000
Revolving Credit Facility Through May 2024 | Amended and Restated RCA
Line of Credit Facility [Line Items]
Credit commitments, principal amount	$ 185,000,000
Line of Credit
Line of Credit Facility [Line Items]
Credit commitments, principal amount		$ 1,307,300,000
Average interest rates on total debt outstanding		6.19%	5.32%
Weighted average interest rates		6.08%		6.07%
Line of Credit | Other Credit Facilities
Line of Credit Facility [Line Items]
Credit commitments, principal amount		$ 1,000,000.0
Outstanding borrowings under revolving credit facilities		$ 0		$ 0