Loans Receivable (Schedule Of Consumer Loans Credit Quality) (Details)	Dec. 31, 2012 Loans Originating In 2003 [Member]		Dec. 31, 2011 Loans Originating In 2003 [Member]		Dec. 31, 2010 Loans Originating In 2003 [Member]		Dec. 31, 2003 Loans Originating In 2003 [Member]		Dec. 31, 2012 Loans Originating In 2004 [Member]		Dec. 31, 2011 Loans Originating In 2004 [Member]		Dec. 31, 2010 Loans Originating In 2004 [Member]		Dec. 31, 2004 Loans Originating In 2004 [Member]		Dec. 31, 2012 Loans Originating In 2005 [Member]		Dec. 31, 2011 Loans Originating In 2005 [Member]		Dec. 31, 2010 Loans Originating In 2005 [Member]		Dec. 31, 2005 Loans Originating In 2005 [Member]		Dec. 31, 2012 Loans Originating In 2006 [Member]		Dec. 31, 2011 Loans Originating In 2006 [Member]		Dec. 31, 2010 Loans Originating In 2006 [Member]		Dec. 31, 2006 Loans Originating In 2006 [Member]		Dec. 31, 2012 Loans Originating In 2007 [Member]		Dec. 31, 2011 Loans Originating In 2007 [Member]		Dec. 31, 2010 Loans Originating In 2007 [Member]		Dec. 31, 2007 Loans Originating In 2007 [Member]		Dec. 31, 2012 Loans Originating In 2008 [Member]		Dec. 31, 2011 Loans Originating In 2008 [Member]		Dec. 31, 2010 Loans Originating In 2008 [Member]		Dec. 31, 2008 Loans Originating In 2008 [Member]		Dec. 31, 2012 Loans Originating In 2009 [Member]		Dec. 31, 2011 Loans Originating In 2009 [Member]		Dec. 31, 2010 Loans Originating In 2009 [Member]		Dec. 31, 2009 Loans Originating In 2009 [Member]		Dec. 31, 2012 Loans Originating In 2010 [Member]		Dec. 31, 2011 Loans Originating In 2010 [Member]		Dec. 31, 2010 Loans Originating In 2010 [Member]		Dec. 31, 2012 Loans Originating In 2011 [Member]		Dec. 31, 2011 Loans Originating In 2011 [Member]		Dec. 31, 2012 Loans Originating In 2012 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	73.80%	[1]	73.70%	[1]	73.70%	[1]			73.00%	[1]	73.00%	[1]	73.00%	[1]			73.60%	[1]	73.60%	[1]	73.70%	[1]			69.90%	[1]	70.00%	[1]	70.20%	[1]			68.00%	[1]	68.10%	[1]	67.90%	[1]			70.30%	[1]	70.00%	[1]	69.90%	[1]			79.50%	[1]	79.40%	[1]	78.50%	[1]			77.30%	[1]	76.80%	[1]	75.80%	[1]	74.10%	[1]	73.20%	[1]	72.20%	[1]
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]	71.40%	[1]
Variance In Forecasted Collection Percentage			0.10%		0.10%						0.00%		0.00%						0.00%		(0.10%)						(0.10%)		(0.30%)						(0.10%)		0.10%						0.30%		0.40%						0.10%		1.00%						0.50%		1.50%				0.90%
Variance In Initial Forecasted Collection Percentage							1.80%								0.00%								(0.40%)								(1.50%)								(2.70%)								0.60%								7.60%						3.70%				1.60%		0.80%

[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.