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Weighted average interest rate of debt outstanding.

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

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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.

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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).

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Borrowings from Secured and Unsecured Debt Financings (Details) $ in Thousands	Feb. 28, 2025 USD ($) aircraft	Jul. 18, 2024 USD ($)	Feb. 29, 2024 USD ($)
Debt Instrument [Line Items]
Borrowings from secured financings, net	$ 502,609		$ 875,397
Borrowings from unsecured financings, net	4,452,781		3,823,099
Long-term Debt	$ 4,955,390		4,698,496
Debt, Weighted Average Interest Rate	5.85%
Secured Debt
Debt Instrument [Line Items]
Borrowings from secured financings, net	$ 502,609		875,397
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	150,000		20,000
Unsecured Debt
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	4,452,781		3,823,099
Bank Financings [Member] \| Notes Payable to Banks
Debt Instrument [Line Items]
Borrowings from secured financings, net	$ 509,104		883,451
Number of Aircraft Financed \| aircraft	21
Bank Financings [Member] \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	5.85%
Secured Debt
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	$ (6,495)		(8,054)
Senior Notes Due 2024 [Member] \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%
Borrowings from unsecured financings, net	$ 0		500,000
Senior Notes Due 2025 \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Borrowings from unsecured financings, net	$ 650,000		650,000
Senior Notes Due 2026 \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Borrowings from unsecured financings, net	$ 650,000		650,000
Senior Notes Due 2028 \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.85%
Borrowings from unsecured financings, net	$ 750,000		750,000
Senior Notes Due 2028 \| Senior Notes \| 2.85%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.85%
Unsecured Debt
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	$ (47,219)		(46,901)
6.500% Senior Notes Due 2028 \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Borrowings from unsecured financings, net	$ 650,000		650,000
6.500% Senior Notes Due 2028 \| Senior Notes \| 6.50%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
5.950% Senior Notes Due 2029 \| Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.95%
Borrowings from unsecured financings, net	$ 650,000		650,000
Senior Notes due 2031 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	$ 500,000		0
Senior Notes due 2031 \| Senior Notes \| 5.75%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Borrowings from unsecured financings, net		$ 500,000
5.25% Senior Notes Due 2030 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	$ 500,000		$ 0
5.25% Senior Notes Due 2030 \| Senior Notes \| 5.25%
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Minimum \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.67%
Minimum \| Bank Financings [Member] \| Notes Payable to Banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.36%
Maximum \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.60%
Maximum \| Bank Financings [Member] \| Notes Payable to Banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.67%