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Auto Loan Receivables (Auto Loan Receivables, Net) (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Mar. 01, 2020	Feb. 29, 2020	Feb. 28, 2019
Non-recourse notes payable	$ 13,764,808		$ 13,613,272
Total ending managed receivables	13,847,200		13,617,800
Accrued interest and fees	57,400		56,200
Other	(3,700)		35,500
Less: allowance for loan losses	(411,100)	$ (359,800)	(157,800)	$ (138,200)
Auto loans receivable, net	13,489,819		13,551,711
Accounting Standards Update 2016-13 [Member] | Financing Receivable
Less: allowance for loan losses		$ (202,000)
Asset-backed term funding
Total ending managed receivables	11,008,300		11,007,100
Warehouse facilities
Total ending managed receivables	2,314,100		2,181,700
Overcollateralization
Total ending managed receivables	345,200		289,000
Other Managed Receivables
Total ending managed receivables	$ 179,600		$ 140,000

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