Finance Receivables Credit Quality (Details) (Consumer Credit Score [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Consumer Credit Score [Member]
Financing Receivable, Recorded Investment [Line Items]
FICO Score less than 540	$ 2,630,877	$ 2,133,361
FICO Score 540 to 599	4,632,294	4,166,988
FICO Score 600 to 659	2,582,625	2,623,882
FICO Score greater than 660	595,296	755,743
Financing Receivable	$ 10,441,092	$ 9,679,974

The amount of the recorded investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, accounts receivable (with terms exceeding one year), notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Receivable

-URI http://asc.fasb.org/extlink&oid=6953735

Name:	us-gaap_FinancingReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant