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Fair Values - Qualitative Information About Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on a Non-recurring Basis (Details) (USD $) In Thousands, unless otherwise specified |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Nonrecurring basis | Dec. 31, 2011 Nonrecurring basis | Dec. 31, 2012 Commercial real estate Nonrecurring basis | Dec. 31, 2011 Commercial real estate Nonrecurring basis | Dec. 31, 2012 Commercial real estate Nonrecurring basis Loans receivable | Dec. 31, 2012 Construction real estate Nonrecurring basis | Dec. 31, 2011 Construction real estate Nonrecurring basis | Dec. 31, 2012 SEPH commercial land and development Nonrecurring basis | Dec. 31, 2012 SEPH commercial land and development Nonrecurring basis Loans receivable | Dec. 31, 2012 Remaining commercial Nonrecurring basis | Dec. 31, 2011 Remaining commercial Nonrecurring basis | Dec. 31, 2012 Remaining commercial Nonrecurring basis Loans receivable | Dec. 31, 2012 Residential real estate Nonrecurring basis | Dec. 31, 2011 Residential real estate Nonrecurring basis | Dec. 31, 2012 Residential real estate Nonrecurring basis Loans receivable | Dec. 31, 2012 Residential real estate Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Residential real estate High Nonrecurring basis Loans receivable | Dec. 31, 2012 Residential real estate Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Commercial real estate Nonrecurring basis Other real estate owned | Dec. 31, 2012 Construction real estate Nonrecurring basis Other real estate owned | Dec. 31, 2012 Residential Real Estate Nonrecurring basis Other real estate owned | Dec. 31, 2012 Sales comparison approach Commercial real estate Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Commercial real estate High Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Commercial real estate Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach SEPH commercial land and development Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach SEPH commercial land and development High Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach SEPH commercial land and development Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Remaining commercial Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Remaining commercial High Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Remaining commercial Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Sales comparison approach Commercial real estate Low Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Commercial real estate High Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Commercial real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Sales comparison approach Construction real estate Low Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Construction real estate High Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Construction real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Sales comparison approach Residential Real Estate Low Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Residential Real Estate High Nonrecurring basis | Dec. 31, 2012 Sales comparison approach Residential Real Estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Income approach Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Income approach High Nonrecurring basis Loans receivable | Dec. 31, 2012 Income approach Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Income approach Commercial real estate Low Nonrecurring basis | Dec. 31, 2012 Income approach Commercial real estate High Nonrecurring basis | Dec. 31, 2012 Income approach Commercial real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Income approach Construction real estate Low Nonrecurring basis | Dec. 31, 2012 Income approach Construction real estate High Nonrecurring basis | Dec. 31, 2012 Income approach Construction real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Income approach Residential Real Estate Low Nonrecurring basis | Dec. 31, 2012 Income approach Residential Real Estate High Nonrecurring basis | Dec. 31, 2012 Income approach Residential Real Estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Cost approach Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Cost approach High Nonrecurring basis Loans receivable | Dec. 31, 2012 Cost approach Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Cost approach Commercial real estate Low Nonrecurring basis | Dec. 31, 2012 Cost approach Commercial real estate High Nonrecurring basis | Dec. 31, 2012 Cost approach Commercial real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Cost approach Residential Real Estate Low Nonrecurring basis | Dec. 31, 2012 Cost approach Residential Real Estate High Nonrecurring basis | Dec. 31, 2012 Cost approach Residential Real Estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Bulk sale approach SEPH commercial land and development Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach SEPH commercial land and development High Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach SEPH commercial land and development Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach Remaining commercial Low Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach Remaining commercial High Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach Remaining commercial Weighted Average Nonrecurring basis Loans receivable | Dec. 31, 2012 Bulk sale approach Commercial real estate Low Nonrecurring basis | Dec. 31, 2012 Bulk sale approach Commercial real estate High Nonrecurring basis | Dec. 31, 2012 Bulk sale approach Commercial real estate Weighted Average Nonrecurring basis Other real estate owned | Dec. 31, 2012 Bulk sale approach Construction real estate Low Nonrecurring basis | Dec. 31, 2012 Bulk sale approach Construction real estate High Nonrecurring basis | Dec. 31, 2012 Bulk sale approach Construction real estate Weighted Average Nonrecurring basis Other real estate owned
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impaired loans | $ 53,932 | $ 67,900 | $ 53,932 | $ 67,882 | $ 25,997 | $ 24,859 | $ 25,997 |  |  | $ 12,832 | $ 12,832 | $ 8,113 | $ 8,860 | $ 8,113 | $ 6,990 | $ 12,935 | $ 6,990 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other real estate owned |  |  | $ 19,926 | $ 23,722 | $ 3,485 | $ 6,062 |  | $ 12,134 | $ 10,834 |  |  |  |  |  | $ 4,307 | $ 6,826 |  |  |  |  | $ 3,485 | $ 12,134 | $ 4,307 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Inputs [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adj to comparables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% | 178.00% | 17.90% |  |  |  | 0.00% | 116.00% | 22.30% | 0.00% | 218.00% | 31.90% | 0.00% | 75.00% | 26.20% | 0.00% | 67.00% | 25.80% | 0.00% | 273.00% | 34.00% | 1.00% | 61.00% | 18.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalization rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.50% | 20.90% | 10.10% | 11.00% | 11.00% | 11.00% | 8.50% | 8.50% | 8.50% | 7.90% | 9.30% | 8.70% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated depreciation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23.00% | 63.00% | 50.40% | 40.90% | 90.00% | 65.00% | 6.00% | 6.00% | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
Discount rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11.00% | 55.00% | 23.40% | 10.00% | 55.00% | 18.30% | 13.00% | 13.00% | 13.00% | 10.00% | 12.00% | 10.80%

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- Definition Fair Value Inputs, Accumulated Depreciation + References No definition available. + Details
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Balance Type: | na
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- Definition Impaired Loan Fair Value + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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- Details
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- Definition Ratio of the net operating income produced by an asset and its capital cost (original prices paid to buy the asset), used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + 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 element represents the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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