Fair Value Of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Of Financial Instruments [Abstract]

Summary Of The Fair Value And Carrying Value Of The Company's Financial Instruments

	2011				2010
	Fair Value		Carrying Value		Fair Value		Carrying Value
Assets:
Cash and cash equivalents	$	1,526,950	$	1,526,950	$	1,021,933	$	1,021,933
Marketable securities	$	153,380	$	153,380	$	140,118	$	140,118
Accounts receivable, net	$	219,039	$	219,039	$	262,382	$	262,382
Derivatives	$	16,443	$	16,443	$	37	$	37
Finance receivables, net	$	5,888,040	$	5,786,681	$	6,120,682	$	6,017,569
Restricted cash held by variable interest entities	$	229,655	$	229,655	$	288,887	$	288,887
Liabilities:
Accounts payable	$	255,713	$	255,713	$	225,346	$	225,346
Derivatives	$	5,136	$	5,136	$	20,083	$	20,083
Unsecured commercial paper	$	874,286	$	874,286	$	582,572	$	582,572
Credit facilities	$	159,794	$	159,794	$	213,772	$	213,772
Medium-term notes	$	2,561,458	$	2,298,193	$	2,018,429	$	1,897,778
Senior unsecured notes	$	376,513	$	303,000	$	395,384	$	303,000
Term asset-backed securitization debt	$	2,099,060	$	2,087,346	$	2,805,954	$	2,755,234