Finance Receivables Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructurings - Number of Loans Entering a Modification Program	12,882
Troubled Debt Restructurings - Subsequent Default	$ 3,742
Troubled Debt Restructurings - Amount of Loans That Entered a Loan Modification Program	242,521
Impaired Financing Receivable, Average Recorded Investment	101,574
Financing Receivable, Modifications, Recorded Investment	228,320
Allowance Related to Finance Receivable Modifications	(32,575)
Financing Receivable, Modifications, Post-Modification Recorded Investment	195,745
Impaired Financing Receivable, Unpaid Principal Balance	231,844
Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income Earne	11,081
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Gross	559,999
Finance Receivables Purchased	1,227,287
Principal Collection and Recoveries on Receivables	$ (667,288)

Allowance Related to Finance Receivable Modifications

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- Definition

Finance Receivables Purchased during the period

+ References

No definition available.

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- Definition

Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income Earned from time loan went into TDR status to end of reporting period

+ References

No definition available.

+ Details

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- Definition

The cash inflow associated with the proceeds from collection of receivables during the period.

+ References

No definition available.

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- Definition

Troubled Debt Restructurings - Amount of Loans That Entered a Loan Modification Program

+ References

No definition available.

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- Definition

Troubled Debt Restructurings - Number of Loans Entering a Modification Program

+ References

No definition available.

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- Definition

Troubled Debt Restructurings - Subsequent Default

+ References

No definition available.

+ Details

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- Definition

Amount of investment in financing receivables (after modification) modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

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-SubTopic 10

-Section 50

-Paragraph 17

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- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Subparagraph 3

-Article 9

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