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Fair Values - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (Recurring basis, USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Mortgage Loans Held for Sale |  |
Mortgage IRLCs |  |
Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Mortgage Loans Held for Sale | 25,743 | 11,535
Mortgage IRLCs | 372 | 251
Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Mortgage Loans Held for Sale |  |
Mortgage IRLCs |  |
Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Mortgage Loans Held for Sale | 25,743 | 11,535
Mortgage IRLCs | 372 | 251
Obligations of U.S. Treasury and other U.S. Government sponsored entities | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
Obligations of U.S. Treasury and other U.S. Government sponsored entities | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 695,727 | 371,657
Obligations of U.S. Treasury and other U.S. Government sponsored entities | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
Obligations of U.S. Treasury and other U.S. Government sponsored entities | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 695,727 | 371,657
Obligations of States and Political Subdivisions | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
Obligations of States and Political Subdivisions | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 1,003 | 2,660
Obligations of States and Political Subdivisions | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
Obligations of States and Political Subdivisions | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 1,003 | 2,660
U.S. Government Sponsored Entities’ Asset-Backed Securities | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
U.S. Government Sponsored Entities’ Asset-Backed Securities | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 415,502 | 444,295
U.S. Government Sponsored Entities’ Asset-Backed Securities | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
U.S. Government Sponsored Entities’ Asset-Backed Securities | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 415,502 | 444,295
Equity securities | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 1,442 | 1,270
Equity securities | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities |  |
Equity securities | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 780 | 763
Equity securities | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Investment Securities | 2,222 | 2,033
Interest Rate Swap | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  |
Interest Rate Swap | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  | 846
Interest Rate Swap | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  |
Interest Rate Swap | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  | 846
Fair value swap | Level 1 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  |
Fair value swap | Level 2 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value |  |
Fair value swap | Level 3 |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value | 135 | 700
Fair value swap | Total fair value |  |
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Swaps, fair value | $ 135 | $ 700

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- Definition Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FIN39-1 -Paragraph 10A, 10B -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 FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 4, 17 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611 + Details
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- Definition Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 15 -Paragraph 83 -URI http://asc.fasb.org/extlink&oid=6913464&loc=d3e34841-113949 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 10 -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 6 -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 the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph a, f, g -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph a -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16383099&loc=d3e24584-111560 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents mortgage loans held-for-sale as presented on the statement of financial position which are due the Company as of the balance sheet date. + References No definition available. + Details
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