Loans Receivable Loans Receivable (Schedule of Additional Consumer Loans Forecasted Collection Percentage) (Details)		Jun. 30, 2019	Mar. 31, 2019
Loans Originating In Current Year Prior Quarters [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage		64.90%	64.10%
Initial Forecasted Collection Percentage	[1]		63.90%
Variance In Forecasted Collection Percentage From Prior Quarter End		0.80%
Variance In Initial Forecasted Collection Percentage	[1]	1.00%
Loans Originating In Current Year Current Quarter [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage		64.50%
Initial Forecasted Collection Percentage	[1]	64.40%
Variance In Initial Forecasted Collection Percentage	[1]	0.10%

[1] Represents the total forecasted collections we expect to collect on the Consumer Loans as a percentage of the repayments that we were contractually owed on the Consumer Loans at the time of assignment.  Contractual repayments include both principal and interest. Forecasted collection rates are negatively impacted by canceled Consumer Loans as the contractual amount owed is not removed from the denominator for purposes of computing forecasted collection rates in the table.     Forecasted Collection Percentage as of   Current Forecast Variance from 2019 Consumer Loan Assignment Period   June 30, 2019   March 31, 2019   Initial Forecast   March 31, 2019   Initial Forecast January 1, 2019 through March 31, 2019   64.9 %   64.1 %   63.9 %   0.8 %   1.0 % April 1, 2019 through June 30, 2019   64.5 %   —
  64.4 %   —
  0.1 %