Subsequent Events (Details) (USD $)	Dec. 31, 2012	Jan. 23, 2013 Subsequent Event Rental Car Asset Backed Notes, Class A and Class B	Jan. 23, 2013 Subsequent Event Class A, 3 year	Jan. 23, 2013 Subsequent Event Class B, 3 year	Jan. 23, 2013 Subsequent Event Class A, 5 year	Jan. 23, 2013 Subsequent Event Class B, 5 year
Subsequent Events
Face amount		$ 950,000,000	$ 282,750,000	$ 42,250,000	$ 543,750,000	$ 81,250,000
Coupon	5.25%		1.12%	1.86%	1.83%	2.48%