Loans Receivable (Schedule of Consumer Loans Forecasted Collection Percentage) (Details)	Sep. 30, 2014 Loans Originating In 2005 [Member]		Jun. 30, 2014 Loans Originating In 2005 [Member]		Dec. 31, 2013 Loans Originating In 2005 [Member]		Dec. 31, 2005 Loans Originating In 2005 [Member]	Sep. 30, 2014 Loans Originating In 2006 [Member]		Jun. 30, 2014 Loans Originating In 2006 [Member]		Dec. 31, 2013 Loans Originating In 2006 [Member]		Dec. 31, 2006 Loans Originating In 2006 [Member]	Sep. 30, 2014 Loans Originating In 2007 [Member]		Jun. 30, 2014 Loans Originating In 2007 [Member]		Dec. 31, 2013 Loans Originating In 2007 [Member]		Dec. 31, 2007 Loans Originating In 2007 [Member]	Sep. 30, 2014 Loans Originating In 2008 [Member]		Jun. 30, 2014 Loans Originating In 2008 [Member]		Dec. 31, 2013 Loans Originating In 2008 [Member]		Dec. 31, 2008 Loans Originating In 2008 [Member]	Sep. 30, 2014 Loans Originating In 2009 [Member]		Jun. 30, 2014 Loans Originating In 2009 [Member]		Dec. 31, 2013 Loans Originating In 2009 [Member]		Dec. 31, 2009 Loans Originating In 2009 [Member]	Sep. 30, 2014 Loans Originating In 2010 [Member]		Jun. 30, 2014 Loans Originating In 2010 [Member]		Dec. 31, 2013 Loans Originating In 2010 [Member]		Dec. 31, 2010 Loans Originating In 2010 [Member]	Sep. 30, 2014 Loans Originating In 2011 [Member]		Jun. 30, 2014 Loans Originating In 2011 [Member]		Dec. 31, 2013 Loans Originating In 2011 [Member]		Dec. 31, 2011 Loans Originating In 2011 [Member]	Sep. 30, 2014 Loans Originating In 2012 [Member]		Jun. 30, 2014 Loans Originating In 2012 [Member]		Dec. 31, 2013 Loans Originating In 2012 [Member]		Dec. 31, 2012 Loans Originating In 2012 [Member]	Sep. 30, 2014 Loans Originating In 2013 [Member]		Jun. 30, 2014 Loans Originating In 2013 [Member]		Dec. 31, 2013 Loans Originating In 2013 [Member]		Sep. 30, 2014 Loans Originating In 2014 [Member]		Jun. 30, 2014 Loans Originating In 2014 [Member]		Dec. 31, 2013 Loans Originating In 2014 [Member]		Sep. 30, 2014 Loans Originating In First And Second Quarter 2014 [Member]	Jun. 30, 2014 Loans Originating In First And Second Quarter 2014 [Member]	Sep. 30, 2014 Loans Originating In Third Quarter 2014 [Member]	Jun. 30, 2014 Loans Originating In Third Quarter 2014 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	73.70%	[1]	73.70%	[1]	73.70%	[1]		70.00%	[1]	70.00%	[1]	70.00%	[1]		68.00%	[1]	68.00%	[1]	67.90%	[1]		70.30%	[1]	70.30%	[1]	70.10%	[1]		79.40%	[1]	79.30%	[1]	79.20%	[1]		77.20%	[1]	77.20%	[1]	77.00%	[1]		74.00%	[1]	74.10%	[1]	74.10%	[1]		73.40%	[1]	73.40%	[1]	73.50%	[1]		73.50%	[1]	73.30%	[1]	73.30%	[1]	72.90%	[1],[2]	72.80%	[1]		[1]	73.30%	72.80%	71.80%
Initial Forecasted Collection Percentage	74.00%	[1]						71.40%	[1]						70.70%	[1]						69.70%	[1]						71.90%	[1]						73.60%	[1]						72.50%	[1]						71.40%	[1]						72.00%	[1]					72.30%	[1]
Variance In Forecasted Collection Percentage from June 30, 2014			0.00%							0.00%							0.00%							0.00%							0.10%							0.00%							(0.10%)							0.00%							0.20%						0.10%
Variance In Forecasted Collection Percentage from December 31, 2013					0.00%							0.00%							0.10%							0.20%							0.20%							0.20%							(0.10%)							(0.10%)							0.20%
Variance In Initial Forecasted Collection Percentage							(0.30%)							(1.40%)							(2.70%)							0.60%							7.50%							3.60%							1.50%							2.00%					1.50%				0.60%
Variance In Forecasted Collection Percentage																																																																					0.50%

[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.

[2] The forecasted collection rate for 2014 Consumer Loans as of September 30, 2014 includes both Consumer Loans that were in our portfolio as of June 30, 2014 and Consumer Loans assigned during the most recent quarter. The following table provides forecasted collection rates for each of these segments: Forecasted Collection Percentage as of 2014 Consumer Loan Assignment Period September 30, 2014 June 30, 2014 VarianceJanuary 1, 2014 through June 30, 2014 73.3% 72.8% 0.5%July 1, 2014 through September 30, 2014 71.8% — —