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Segment Information (Schedule Of Operating Results By Segment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011
Segment Reporting Information [Line Items] |  |  |
Net interest income | $ 61,728 | $ 69,313 |
Provision for loan losses | 9,000 | 14,100 |
Other income and security gains | 39,620 | 21,665 |
Other expense | 47,808 | 46,346 |
Net income | 31,475 | 22,196 |
Assets | 6,776,851 | 7,323,105 | 6,972,245
PNB [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 55,846 | 60,236 |
Provision for loan losses | 4,672 | 4,975 |
Other income and security gains | 16,661 | 22,897 |
Other expense | 38,056 | 36,321 |
Net income | 21,561 | 29,030 |
Assets | 6,587,773 | 6,573,541 |
VB [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income |  | 6,755 |
Provision for loan losses |  | 8,600 |
Other income and security gains |  | (1,318) |
Other expense |  | 7,425 |
Net income |  | (6,846) |
Assets |  | 786,856 |
Guardian [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 2,211 | 2,025 |
Provision for loan losses | 250 | 525 |
Other expense | 721 | 577 |
Net income | 806 | 600 |
Assets | 47,380 | 45,366 |
SE Property Holdings [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 2,610 |  |
Provision for loan losses | 4,078 |  |
Other income and security gains | 22,891 |  |
Other expense | 7,503 |  |
Net income | 9,059 |  |
Assets | 161,493 | 20,000 |
All Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income | 1,061 | 297 |
Other income and security gains | 68 | 86 |
Other expense | 1,528 | 2,023 |
Net income | 49 | (588) |
Assets | $ (19,795) | $ (102,658) |

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