v2.4.0.6

Business Combinations Narrative (Details) (USD $) In Thousands, unless otherwise specified |  | 0 Months Ended | 12 Months Ended |  | 0 Months Ended |
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Dec. 31, 2012 community | Sep. 10, 2010 First Bank [Member] branch | Dec. 31, 2010 First Bank [Member] | Sep. 10, 2010 Acquired Book Value [Member] First Bank [Member] | Sep. 10, 2010 Fair Value Adjustments [Member] First Bank [Member] | Sep. 10, 2010 Core Deposits [Member] First Bank [Member] | Sep. 10, 2010 Cash On Hand, Branches [Member] Acquired Book Value [Member] First Bank [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of bank branches acquired |  | 10 |  |  |  |  |
Number of communites offering banking capabilities to customers | 25 |  |  |  |  |  |
Acquired deposits |  | $ 337,429 |  | $ 336,016 | $ 1,413 |  |
Acquired loans |  | (133,117) |  | (135,219) | 2,102 |  |
Acquired premises and equipment |  | 12,951 |  | 5,266 | 7,685 |  |
Deposit premium percentage rate on core deposits acquired |  | 4.77% |  |  |  |  |
Deposit premium on core deposits acquired (in dollars) |  | 15,600 |  |  |  |  |
Cash |  | 180,074 |  | 180,074 | 0 |  | 1,800
Cash paid to acquire company |  | 178,300 |  |  |  |  |
Acquisition related costs |  |  | 1,154 |  |  |  |
Acquired core deposit intangible assets |  | $ 3,050 |  | $ 0 | $ 3,050 |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  | 10 years |

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- Definition Amount of cash paid to acquire the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph f(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e1043-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 59 -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. + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 12, 13, 14, 20, A107 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=9154965&loc=d3e2207-128464 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph i -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. + Details
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