Borrowings from Secured and Unsecured Debt Financings (Details Textual) - USD ($) $ in Thousands	May 31, 2024	Feb. 29, 2024
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	$ 3,876,765	$ 3,823,099
Remaining borrowing capacity	$ 1,600,000
6.500% Senior Notes due 2028 | Senior Notes | 6.50%
Debt Instrument [Line Items]
Interest rate	6.50%
Borrowings from unsecured financings, net	$ 650,000	650,000
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Borrowings from unsecured financings, net	$ 570,000	$ 20,000