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Segment Information (Schedule Of Operating Results By Segment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 segments | Jun. 30, 2011 | Dec. 31, 2011 segments
Segment Reporting Information [Line Items] |  |  |  |  |
Number of Operating Segments |  |  | 3 |  | 2
Net interest income | $ 58,680 | $ 70,022 | $ 120,408 | $ 139,335 |
Provision for loan losses | 5,238 | 12,516 | 13,576 | 26,616 |
Other income and security gains | 17,508 | 30,500 | 57,128 | 52,165 |
Other expense | 45,804 | 47,007 | 94,274 | 93,353 |
Net income | 18,886 | 28,953 | 50,361 | 51,149 |
Assets | 6,705,574 | 7,322,024 | 6,705,574 | 7,322,024 | 6,972,245
PNB [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net interest income | 56,022 | 60,542 | 111,868 | 120,779 |
Provision for loan losses | 3,756 | 4,975 | 8,428 | 9,950 |
Other income and security gains | 17,700 | 30,403 | 34,361 | 53,300 |
Other expense | 37,260 | 36,315 | 75,316 | 72,636 |
Net income | 23,483 | 34,250 | 45,044 | 63,279 |
Assets | 6,535,709 | 6,565,419 | 6,535,709 | 6,565,419 |
VB [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net interest income |  | 7,000 |  | 13,755 |
Provision for loan losses |  | 7,016 |  | 15,616 |
Other income and security gains |  | 1,656 |  | 339 |
Other expense |  | 8,174 |  | 15,599 |
Net income |  | (4,219) |  | (11,065) |
Assets |  | 743,980 |  | 743,980 |
GFSC [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net interest income | 2,305 | 2,195 | 4,516 | 4,220 |
Provision for loan losses | 200 | 525 | 450 | 1,050 |
Other income and security gains |  |  |  |  |
Other expense | 706 | 639 | 1,427 | 1,216 |
Net income | 909 | 669 | 1,715 | 1,269 |
Assets | 48,763 | 45,912 | 48,763 | 45,912 |
SEPH [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net interest income | (1,125) | (224) | 1,485 | (224) |
Provision for loan losses | 1,282 |  | 4,698 |  |
Other income and security gains | (275) | (1,641) | 22,616 | (1,641) |
Other expense | 5,999 | 32 | 14,164 | 32 |
Net income | (5,640) | (1,233) | 3,419 | (1,233) |
Assets | 140,051 | 38,103 | 140,051 | 38,103 |
All Other [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net interest income | 1,478 | 509 | 2,539 | 805 |
Provision for loan losses |  |  |  |  |
Other income and security gains | 83 | 82 | 151 | 167 |
Other expense | 1,839 | 1,847 | 3,367 | 3,870 |
Net income | 134 | (514) | 183 | (1,101) |
Assets | $ (18,949) | $ (71,390) | $ (18,949) | $ (71,390) |

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