Loans Receivable (Schedule Of Consumer Loans Credit Quality) (Details)	Sep. 30, 2012 Loans Originating In 2003 [Member]		Jun. 30, 2012 Loans Originating In 2003 [Member]		Dec. 31, 2011 Loans Originating In 2003 [Member]		Dec. 31, 2003 Loans Originating In 2003 [Member]		Sep. 30, 2012 Loans Originating In 2004 [Member]		Jun. 30, 2012 Loans Originating In 2004 [Member]		Dec. 31, 2011 Loans Originating In 2004 [Member]		Dec. 31, 2004 Loans Originating In 2004 [Member]		Sep. 30, 2012 Loans Originating In 2005 [Member]		Jun. 30, 2012 Loans Originating In 2005 [Member]		Dec. 31, 2011 Loans Originating In 2005 [Member]		Dec. 31, 2005 Loans Originating In 2005 [Member]		Sep. 30, 2012 Loans Originating In 2006 [Member]		Jun. 30, 2012 Loans Originating In 2006 [Member]		Dec. 31, 2011 Loans Originating In 2006 [Member]		Dec. 31, 2006 Loans Originating In 2006 [Member]		Sep. 30, 2012 Loans Originating In 2007 [Member]		Jun. 30, 2012 Loans Originating In 2007 [Member]		Dec. 31, 2011 Loans Originating In 2007 [Member]		Dec. 31, 2007 Loans Originating In 2007 [Member]		Sep. 30, 2012 Loans Originating In 2008 [Member]		Jun. 30, 2012 Loans Originating In 2008 [Member]		Dec. 31, 2011 Loans Originating In 2008 [Member]		Dec. 31, 2008 Loans Originating In 2008 [Member]		Sep. 30, 2012 Loans Originating In 2009 [Member]		Jun. 30, 2012 Loans Originating In 2009 [Member]		Dec. 31, 2011 Loans Originating In 2009 [Member]		Dec. 31, 2009 Loans Originating In 2009 [Member]		Sep. 30, 2012 Loans Originating In 2010 [Member]		Jun. 30, 2012 Loans Originating In 2010 [Member]		Dec. 31, 2011 Loans Originating In 2010 [Member]		Dec. 31, 2010 Loans Originating In 2010 [Member]		Sep. 30, 2012 Loans Originating In 2011 [Member]		Jun. 30, 2012 Loans Originating In 2011 [Member]		Dec. 31, 2011 Loans Originating In 2011 [Member]		Sep. 30, 2012 Loans Originating In 2012 [Member]		Jun. 30, 2012 Loans Originating In 2012 [Member]		Sep. 30, 2012 Loans Originating In Quarters One And Two Two Thousand Twelve [Member]	Jun. 30, 2012 Loans Originating In Quarters One And Two Two Thousand Twelve [Member]	Sep. 30, 2012 Loans Originating In Quarter Three Two Thousand Twelve [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	73.80%	[1]	73.80%	[1]	73.70%	[1]			73.00%	[1]	73.00%	[1]	73.00%	[1]			73.50%	[1]	73.60%	[1]	73.60%	[1]			70.00%	[1]	70.00%	[1]	70.00%	[1]			68.10%	[1]	68.10%	[1]	68.10%	[1]			70.30%	[1]	70.30%	[1]	70.00%	[1]			79.50%	[1]	79.60%	[1]	79.40%	[1]			77.20%	[1]	77.10%	[1]	76.80%	[1]			73.70%	[1]	73.60%	[1]	73.20%	[1]	71.60%	[1],[2]	71.90%	[1],[2]	72.00%	71.90%	70.60%
Initial Forecasted Collection Percentage							72.00%	[1]							73.00%	[1]							74.00%	[1]							71.40%	[1]							70.70%	[1]							69.70%	[1]							71.90%	[1]							73.60%	[1]					72.50%	[1]	71.10%	[1],[2]
Variance In Forecasted Collection Percentage			0.00%		0.10%						0.00%		0.00%						(0.10%)		(0.10%)						0.00%		0.00%						0.00%		0.00%						0.00%		0.30%						(0.10%)		0.10%						0.10%		0.40%						0.10%		0.50%				(0.30%)	[2]	0.10%
Variance In Initial Forecasted Collection Percentage							1.80%								0.00%								(0.50%)								(1.40%)								(2.60%)								0.60%								7.60%								3.60%						1.20%		0.50%	[2]

[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.The forecasted collection rate for 2012 Consumer Loans as of September 30, 2012 includes both Consumer Loans that were in our portfolio as of June 30, 2012 and Consumer Loans assigned during the most recent quarter. The following table provides forecasted collection rates for each of these segments:

[2] The forecasted collection rate for 2012 Consumer Loans as of September 30, 2012 includes both Consumer Loans that were in our portfolio as of June 30, 2012 and Consumer Loans assigned during the most recent quarter. The following table provides forecasted collection rates for each of these segments