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Loans Receivable (Summary of Changes in Loans Receivable) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Loans and Leases Receivable, Net [Roll Forward] |  |  |  |  |  |  |  |
Balance, beginning of period | $ 2,562.8 |  | $ 2,278.5 |  | $ 2,408.2 |  | $ 2,109.9 |
New Consumer Loan assignments | 391.7 | [1] | 369.2 | [1] | 1,246.4 | [1] | 1,138.2 | [1]
Principal collected on Loans receivable | (381.3) |  | (330.5) |  | (1,171.7) |  | (1,008.4) |
Accelerated Dealer Holdback payments | (9.7) |  | (10.4) |  | (31.6) |  | (30.8) |
Dealer Holdback payments | 33.7 |  | 27.8 |  | 101.5 |  | 86.3 |
Transfers |  |  |  |  |  |  |  |
Write-offs | (1.2) |  | (1.6) |  | (2.1) |  | (4.7) |
Recoveries | 0.5 | [2] | 0.6 | [2] | 1.5 | [2] | 1.9 | [2]
Net change in other loans | 0.3 |  | 0.1 |  | 0.2 |  | 0.3 |
Balance, end of period | 2,615.6 |  | 2,354.3 |  | 2,615.6 |  | 2,354.3 |
Dealer Loans [Member] |  |  |  |  |  |  |  |
Loans and Leases Receivable, Net [Roll Forward] |  |  |  |  |  |  |  |
Balance, beginning of period | 2,279.0 |  | 2,041.4 |  | 2,155.5 |  | 1,869.4 |
New Consumer Loan assignments | 342.9 | [1] | 335.3 | [1] | 1,103.6 | [1] | 1,048.0 | [1]
Principal collected on Loans receivable | (344.4) |  | (299.1) |  | (1,060.5) |  | (908.4) |
Accelerated Dealer Holdback payments | (9.7) |  | (10.4) |  | (31.6) |  | (30.8) |
Dealer Holdback payments | 33.7 |  | 27.8 |  | 101.5 |  | 86.3 |
Transfers | (4.6) | [3] | (4.6) | [3] | (16.0) | [3] | (13.5) | [3]
Write-offs | (1.1) |  | (1.6) |  | (2.0) |  | (4.6) |
Recoveries | 0.4 | [2] | 0.5 | [2] | 1.4 | [2] | 1.7 | [2]
Net change in other loans | 0.3 |  | 0.1 |  | 0.2 |  | 0.3 |
Balance, end of period | 2,315.3 |  | 2,110.0 |  | 2,315.3 |  | 2,110.0 |
Purchased Loans [Member] |  |  |  |  |  |  |  |
Loans and Leases Receivable, Net [Roll Forward] |  |  |  |  |  |  |  |
Balance, beginning of period | 283.8 |  | 237.1 |  | 252.7 |  | 240.5 |
New Consumer Loan assignments | 48.8 | [1] | 33.9 | [1] | 142.8 | [1] | 90.2 | [1]
Principal collected on Loans receivable | (36.9) |  | (31.4) |  | (111.2) |  | (100.0) |
Accelerated Dealer Holdback payments |  |  |  |  |  |  |  |
Dealer Holdback payments |  |  |  |  |  |  |  |
Transfers | 4.6 | [3] | 4.6 | [3] | 16.0 | [3] | 13.5 | [3]
Write-offs | (0.1) |  | 0 |  | (0.1) |  | (0.1) |
Recoveries | 0.1 | [2] | 0.1 | [2] | 0.1 | [2] | 0.2 | [2]
Net change in other loans | 0 |  | 0 |  |  |  |  |
Balance, end of period | $ 300.3 |  | $ 244.3 |  | $ 300.3 |  | $ 244.3 |
[1] | The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program. The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program.
[2] | Represents collections received on previously written off Loans.
[3] | Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance to Purchased Loans in the period this forfeiture occurs.

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- Definition The cash outflow for payments made to dealers under our Portfolio Program at the time a pool of 100 or more consumer loans is closed by dealers with a single open pool or at the time 100 consumer loans have been collectively assigned by dealers with multiple open pools. + References No definition available. + Details
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- Definition Loans and leases receivable transfers. + References No definition available. + Details
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- Definition New consumer loan assignments + References No definition available. + Details
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- Definition The cash outflow for payments made to dealers under our Portfolio Program from the portion of the collections on the underlying consumer loans that exceed amounts retained by us to recover the advance balance, certain collection costs, and our servicing fee. + References No definition available. + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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 (a) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References No definition available. + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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- Definition The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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