Loans (Period-End Balances And Various Asset Quality Attributes By Originations Vintage For R/E Installment Loans) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 15,812,017,000	$ 15,389,074,000	$ 15,408,556,000
Real Estate Installment Class [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	2,572,693,000		2,561,515,000
Avg orig FICO	748		746
Avg Refreshed FICO	746		742
Real Estate Installment Class [Member] | Origination Vintage Period Pre2003 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	16,278,000		26,603,000
Avg orig FICO	680		682
Avg Refreshed FICO	684		684
Real Estate Installment Class [Member] | Origination Vintage Period 2003 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	55,361,000		81,915,000
Avg orig FICO	715		716
Avg Refreshed FICO	724		725
Real Estate Installment Class [Member] | Origination Vintage Period 2004 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	44,484,000		58,244,000
Avg orig FICO	700		701
Avg Refreshed FICO	697		699
Real Estate Installment Class [Member] | Origination Vintage Period 2005 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	132,276,000		170,742,000
Avg orig FICO	715		717
Avg Refreshed FICO	713		711
Real Estate Installment Class [Member] | Origination Vintage Period 2006 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	143,601,000		183,847,000
Avg orig FICO	714		716
Avg Refreshed FICO	701		701
Real Estate Installment Class [Member] | Origination Vintage Period 2007 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	211,780,000		264,851,000
Avg orig FICO	723		725
Avg Refreshed FICO	709		709
Real Estate Installment Class [Member] | Origination Vintage Period 2008 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	67,730,000		91,883,000
Avg orig FICO	721		723
Avg Refreshed FICO	715		720
Real Estate Installment Class [Member] | Origination Vintage Period 2009 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	31,524,000		39,549,000
Avg orig FICO	739		742
Avg Refreshed FICO	728		736
Real Estate Installment Class [Member] | Origination Vintage Period 2010 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	107,417,000		131,004,000
Avg orig FICO	748		747
Avg Refreshed FICO	755		754
Real Estate Installment Class [Member] | Origination Vintage Period 2011 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	296,440,000		347,315,000
Avg orig FICO	760		761
Avg Refreshed FICO	759		761
Real Estate Installment Class [Member] | Origination Vintage Period 2012 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	628,622,000		707,972,000
Avg orig FICO	764		764
Avg Refreshed FICO	765		764
Real Estate Installment Class [Member] | Origination Vintage Period 2013 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	486,553,000		457,590,000
Avg orig FICO	756		758
Avg Refreshed FICO	757		754
Real Estate Installment Class [Member] | Origination Vintage Period 2014 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
R/E Installment Loans- Period End Balance	$ 350,627,000		$ 0
Avg orig FICO	755		0
Avg Refreshed FICO	754		0