Loan Securitization (Carrying Values And Classification Of The Restricted Assets And Liabilities Relating To The Securitization Activities) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Cash collateral accounts	$ 7,900
Interest-bearing deposits with banks - restricted for securitization investors	23,276	36,620	83,501
Allowance for loan losses	(117,362)	(113,903)	(106,547)
Net loans - restricted for securitization investors	660,294	646,268	598,857
Secured borrowings - owed to securitization investors	600,000	600,000	600,000
Restricted Assets And Liabilities [Member]
Cash collateral accounts	1,759	1,759	1,759
Collections and interest funding accounts	21,517	34,861	81,742
Interest-bearing deposits with banks - restricted for securitization investors	23,276	36,620	83,501
Loans, net of unearned income - restricted for securitization investors	662,528	648,439	600,834
Allowance for loan losses	(2,234)	(2,171)	(1,977)
Net loans - restricted for securitization investors	660,294	646,268	598,857
Other assets	2,557	2,289	1,949
Total assets	686,127	685,177	684,307
Secured borrowings - owed to securitization investors	600,000	600,000	600,000
Other liabilities	4,750	4,458	3,914
Total liabilities	$ 604,750	$ 604,458	$ 603,914