Fair Value (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Carrying amounts and estimated fair values of financial instruments:
Securities available for sale	$ 186,634	$ 167,352	$ 171,907
Securities held to maturity	58,376	61,496	61,676
Accrued interest receivable	9,780	10,201	10,932
FDIC indemnification asset	92,950	102,559	116,902
Bank-owned life insurance	43,276	27,857	27,380
Accrued interest payable	1,071	1,299	1,549
Carrying Amount
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	82,798	96,588
Due from banks, interest-bearing	154,199	144,919
Federal funds sold	603
Securities available for sale	186,634	167,352
Securities held to maturity	54,361	56,064
Presold mortgages in process of settlement	4,552	8,490
Loans - non-covered, net of allowance	2,145,767	2,052,500
Loans - covered, net of allowance	234,244	277,555
Loans held for sale		30,393
Accrued interest receivable	9,780	10,201
FDIC indemnification asset	92,950	102,559
Bank-owned life insurance	43,276	27,857
Deposits	2,818,353	2,821,360
Borrowings	46,394	46,394
Accrued interest payable	1,071	1,299
Fair Value
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	82,798	96,588
Due from banks, interest-bearing	154,199	144,919
Federal funds sold	603
Securities available for sale	186,634	167,352
Securities held to maturity	58,376	61,496
Presold mortgages in process of settlement	4,552	8,490
Loans - non-covered, net of allowance	2,087,933	1,998,620
Loans - covered, net of allowance	234,244	277,555
Loans held for sale		30,393
Accrued interest receivable	9,780	10,201
FDIC indemnification asset	90,180	100,396
Bank-owned life insurance	43,276	27,857
Deposits	2,820,238	2,823,989
Borrowings	34,796	20,981
Accrued interest payable	1,071	1,299
Level in Fair Value Hierachy
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	1	1
Due from banks, interest-bearing	1	1
Federal funds sold	1	1
Securities available for sale	2	2
Securities held to maturity	2	2
Presold mortgages in process of settlement	1	1
Loans - non-covered, net of allowance	3	3
Loans - covered, net of allowance	3	3
Loans held for sale	2	2
Accrued interest receivable	1	1
FDIC indemnification asset	3	3
Bank-owned life insurance	1	1
Deposits	2	2
Borrowings	2	2
Accrued interest payable	$ 2	$ 2

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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.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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A bank's noninterest bearing demand deposits in other banks (such as correspondents).

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Carrying amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses.

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Fair value of investments in debt securities classified as held-to-maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Net carrying amount of loans and leases receivable covered by loss sharing agreements.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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