Fair Value of Financial Instruments (Schedule of Comparison of the Carrying Value and Estimated Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 1.3	$ 6.4
Restricted cash and cash equivalents	177.5	157.6
Restricted securities available for sale	52.1	53.2
Net investment in Loans receivable	2,844.3	2,517.3
Liabilities
Revolving secured line of credit	24.8	119.5
Secured financing	1,346.8	1,334.7
Senior notes	562.6	299.3
Carrying Amount [Member]
Assets
Cash and cash equivalents	1.3	6.4
Restricted cash and cash equivalents	177.5	157.6
Restricted securities available for sale	52.1	53.2
Net investment in Loans receivable	2,834.7	2,512.9
Liabilities
Revolving secured line of credit	24.8	119.5
Secured financing	1,345.0	1,333.0
Senior notes	548.2	300.0
Estimated Fair Value [Member]
Assets
Cash and cash equivalents	1.3	6.4
Restricted cash and cash equivalents	177.5	157.6
Restricted securities available for sale	52.1	53.2
Net investment in Loans receivable	2,844.3	2,517.3
Liabilities
Revolving secured line of credit	24.8	119.5
Secured financing	1,346.8	1,334.7
Senior notes	$ 562.6	$ 299.3

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Secured Financing Fair Value Disclosure

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The carrying amount of securities categorized neither as held-to-maturity nor trading which serve as security for borrowings or other arrangements.

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-Publisher FASB

-Name Accounting Standards Codification

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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-Publisher FASB

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Fair value portion of notes payable.

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-Topic 210

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-Section S99

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-Subparagraph (SX 210.5-02.19,20,22)

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