Fair Value Of Financial Instruments (Schedule Of Assets And Liabilities, Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 4.2	$ 9.0
Restricted cash and cash equivalents	111.3	92.4
Restricted securities available for sale	53.6	46.1
Net investment in Loans receivable	2,226.7	1,951.4
Revolving secured line of credit	102.8	43.5
Secured financing	938.9	863.0
Cost	53.9	46.3
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	4.2	9.0
Restricted cash and cash equivalents	111.3	92.4
Restricted securities available for sale	25.1	24.0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted securities available for sale	28.5	22.1
Revolving secured line of credit	102.8	43.5
Secured financing	938.9	863.0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net investment in Loans receivable	2,226.7	1,951.4
Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	367.1	381.9
Senior Notes [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	367.1	381.9
Mortgages [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	3.8	4.0
Mortgages [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	3.8	4.0
Carrying Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	4.2	9.0
Restricted cash and cash equivalents	111.3	92.4
Restricted securities available for sale	53.6	46.1
Net investment in Loans receivable	2,212.8	1,933.5
Revolving secured line of credit	102.8	43.5
Secured financing	935.6	853.0
Carrying Amount [Member] | Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	350.2	350.3
Carrying Amount [Member] | Mortgages [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	3.8	4.0
Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	4.2	9.0
Restricted cash and cash equivalents	111.3	92.4
Restricted securities available for sale	53.6	46.1
Net investment in Loans receivable	2,226.7	1,951.4
Revolving secured line of credit	102.8	43.5
Secured financing	938.9	863.0
Estimated Fair Value [Member] | Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	367.1	381.9
Estimated Fair Value [Member] | Mortgages [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes	3.8	4.0
Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted securities available for sale	4.6	3.3
Cost	$ 4.6	$ 3.3