Borrowings from Secured and Unsecured Debt Financings - Outstanding amounts of secured and unsecured term debt financings (Details) $ in Thousands	May 31, 2025 USD ($) aircraft	Feb. 28, 2025 USD ($)
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings	$ 114,608	$ 502,609
Borrowings from unsecured financings, net	$ 4,919,677	4,452,781
Number of Aircraft \| aircraft
Total secured and unsecured debt financings, net of debt issuance costs and discounts	$ 5,034,285	4,955,390
Line of Credit \| Revolving Credit Facility
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 20,000	150,000
Line of Credit \| Minimum \| Revolving Credit Facility
Outstanding amounts of secured and unsecured term debt financings
Interest Rate	6.46%
Bank Financings \| Notes Payable to Banks
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings	$ 116,663	509,104
Number of Aircraft \| aircraft	4
Bank Financings \| Notes Payable, Other Payables
Outstanding amounts of secured and unsecured term debt financings
Weighted-average fixed interest rate	3.10%
Bank Financings \| Bank Financings \| Minimum
Outstanding amounts of secured and unsecured term debt financings
Interest Rate	2.36%
Bank Financings \| Bank Financings \| Maximum
Outstanding amounts of secured and unsecured term debt financings
Interest Rate	4.14%
Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt issuance costs and discounts	$ (2,055)	(6,495)
Senior Notes due 2025 \| Senior Notes \| 5.25%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 650,000	650,000
Interest Rate	5.25%
Senior Notes due 2026 \| Senior Notes \| 4.25%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 650,000	650,000
Interest Rate	4.25%
2.850% Senior Notes due 2028 \| Senior Notes \| 2.85%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 750,000	750,000
Interest Rate	2.85%
6.500% Senior Notes due 2028 \| Senior Notes \| 6.50%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 650,000	650,000
Interest Rate	6.50%
Senior Notes due 2029 \| Senior Notes \| 5.95%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 650,000	650,000
Interest Rate	5.95%
Senior Notes due 2031 \| Senior Notes \| 5.75%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 500,000	500,000
Interest Rate	5.75%
Unsecured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt issuance costs and discounts	$ (50,323)	(47,219)
Senior Notes Due 2030 \| Senior Notes \| 5.25%
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net	$ 500,000	$ 500,000
Interest Rate	5.25%
2025 Unsecured Term Loan \| Bank Financings
Outstanding amounts of secured and unsecured term debt financings
Interest Rate	5.66%

Number of Aircraft Financed

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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- References

No definition available.

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

+ Details

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

+ Details

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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