Consumer Loans, Credit Quality Information And Allowances And Liabilities For Estimated Losses On Consumer Loans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Days for delinquent loans to be charged off	60 days
Active consumer loans owned by third-party lenders	$ 47.5	$ 59.0	$ 50.9
Accrual for losses on consumer loan guaranty obligations	$ 3.2	$ 3.1	$ 3.0
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquent loans expiry period (in days)	1 day
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Delinquent loans expiry period (in days)	59 days
Short Term Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Guaranteed Loans Term Available	90 days
Secured Auto Equity Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Guaranteed Loans Term Available	42 months
Guaranteed Loans Term Average	24 months