Finance Receivables And Allowance For Credit Losses (Schedule Of Past Due Financing Receivables) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
30-59 Days Past Due	$ 18,622	$ 20,430
60-89 Days Past Due	4,265	5,035
Recorded Investment > 90 Days and Accruing	438	572
Nonaccrual	118,437	70,945
Total Past Due	141,762	96,982
Current	3,975,579	3,646,469
Commercial [Member]
30-59 Days Past Due	3,314	2,543
60-89 Days Past Due	1,055	583
Recorded Investment > 90 Days and Accruing	3	79
Nonaccrual	36,190	25,488
Total Past Due	40,562	28,693
Current	1,229,045	1,182,706
Commercial Real Estate - Construction [Member]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Recorded Investment > 90 Days and Accruing	0	0
Nonaccrual	2,871	0
Total Past Due	2,871	0
Current	95,799	101,016
Commercial Real Estate - Other [Member]
30-59 Days Past Due	1,668	992
60-89 Days Past Due	513	98
Recorded Investment > 90 Days and Accruing	57	0
Nonaccrual	64,389	30,416
Total Past Due	66,627	31,506
Current	1,005,104	809,873
Consumer, Heloc [Member]
30-59 Days Past Due	289	849
60-89 Days Past Due	101	477
Recorded Investment > 90 Days and Accruing	40	189
Nonaccrual	1,038	1,903
Total Past Due	1,468	3,418
Current	253,605	244,875
Consumer, Auto [Member]
30-59 Days Past Due	4,934	5,791
60-89 Days Past Due	871	1,316
Recorded Investment > 90 Days and Accruing	159	120
Nonaccrual	2,261	2,331
Total Past Due	8,225	9,558
Current	478,191	487,544
Consumer, Other [Member]
30-59 Days Past Due	1,263	1,129
60-89 Days Past Due	646	972
Recorded Investment > 90 Days and Accruing	179	184
Nonaccrual	1,881	2,088
Total Past Due	3,969	4,373
Current	136,433	175,184
Residential [Member]
30-59 Days Past Due	7,154	9,126
60-89 Days Past Due	1,079	1,589
Recorded Investment > 90 Days and Accruing	0	0
Nonaccrual	9,807	8,719
Total Past Due	18,040	19,434
Current	$ 777,402	$ 645,271