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Loans (Recorded Investment By Loan Grade) (Details) (USD $) In Thousands | Sep. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Commercial, Financial, and Agricultural [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | $ 36,037 | $ 26,322
Commercial, Financial, and Agricultural [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 7,150 | 11,447
Commercial, Financial, and Agricultural [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 24,925 | 19,276
Commercial, Financial, and Agricultural [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 759,880 | 740,788
Commercial, Financial, and Agricultural [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 691,768 | 683,743
Commercial Real Estate [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 51,417 | 57,394
Commercial Real Estate [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 21,222 | 26,992
Commercial Real Estate [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 44,099 | 57,941
Commercial Real Estate [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 1,256,000 | 1,231,420
Commercial Real Estate [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 1,139,262 | 1,089,093
Leases [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans |  |
Leases [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans |  |
Leases [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans |  |
Leases [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 2,204 | 2,663
Leases [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 2,204 | 2,663
Vision Commercial Land And Development [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 10,791 | 10,220
Vision Commercial Land And Development [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 2,040 | 7,941
Vision Commercial Land And Development [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 42,036 | 87,424
Vision Commercial Land And Development [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 102,503 | 171,616
Vision Commercial Land And Development [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 47,636 | 66,031
Remaining Commercial [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 7,954 | 14,021
Remaining Commercial [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 14,626 | 39,062
Remaining Commercial [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 33,961 | 27,080
Remaining Commercial [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 163,947 | 196,315
Remaining Commercial [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 107,406 | 116,152
Residential Real Estate - Commercial [Member] | 5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 22,825 | 29,206
Residential Real Estate - Commercial [Member] | 6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 14,096 | 18,117
Residential Real Estate - Commercial [Member] | Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 47,422 | 60,227
Residential Real Estate - Commercial [Member] | Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 457,946 | 466,306
Residential Real Estate - Commercial [Member] | Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 373,603 | 358,756
5 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 129,024 | 137,163
6 Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 59,134 | 103,559
Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 192,443 | 251,948
Recorded Investment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | 2,742,480 | 2,809,108
Pass Rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Commercial Loans | $ 2,361,879 | $ 2,316,438

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- Definition Reflects the sum of the gross carrying amounts of the various categories of unpaid commercial loans and leases receivable, primarily issued to businesses. Includes: (1) commercial and industrial loans, consisting of general purpose loans to entities involved in producing, transporting, or merchandising products sold in the course of commerce; (2) agricultural loans consisting of borrowings used to finance major equipment and machinery purchases and expenses, livestock or crop production (including fisheries), and to supplement working capital needs of an entity engaged in farming operations; (3) mortgage loans secured by a [legal] security interest in real property [commercial building or business real property]; (4) obligation in the form of [promissory] notes, used for the funding of construction projects; (5) interbank and other loans to financial institutions for the purpose of liquidity management on the part of the borrower; (6) draws against credit facilities provided to companies involved in mortgage banking activities (warehousing); (7) amounts lent to businesses engaged in international activities (trade financing); (8) lease financings; and (9) loans to governmental entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a),(b)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 03 -Paragraph 7 -Subparagraph a, b Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 + Details
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