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Fair Values - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Discount percentage applied to real estate appraised values | 15.00% |  |  |
Discount percentage applied to lot development appraised values | 6.00% |  |  |
Partial charge-offs on impaired loans | $ 28,705 | $ 32,480 |  |
Allowance for loans individually evaluated for impairment | 4,191 | 3,660 |  |
Book Value Of Impaired Loans Carried At Fair Value | 11,783 | 19,643 |  |
Impaired loans carried at fair value | 9,496 | 16,963 |  |
Impaired Financing Receivable, Related Allowance | 4,191 | 3,660 |  |
Impaired Financing Receivable, carried at fair value, related expense | 2,100 | 3,000 | $ 8,100 |
MSR recorded at lower of cost or fair value | 9,008 | 8,613 | 9,013 | $ 7,763
Servicing Asset at Fair Value, Amount | 1,900 | 2,900 |  |
Mortgage Servicing Rights, at fair value | 9,593 | 9,057 |  |
Valuation allowance of MSR | 542 | 826 | 1,031 | $ 2,324
MSRs recorded at cost | 7,100 | 5,700 |  |
Valuation allowance for impairment of recognized servicing assets, provisions (recoveries) | 284 | 205 | 1,293 |
Other Real Estate, Foreclosed Assets, and Repossessed Assets | $ 18,651 | 22,605 |  |
Percent of OREO held at fair value | 46.00% |  |  |
Estimated fair value of other real estate owned (OREO) | $ 8,500 | 10,300 |  |
OREO devaluations | 1,592 | 2,406 | $ 3,180 |
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired Financing Receivable, Related Allowance | $ 2,287 | $ 2,680 |  |

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings. + 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 210.9-03.10(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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