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Composition of Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Federal funds purchased	$ 16,000
Securities sold under agreements to repurchase:
Securities sold under agreements to repurchase	118,308	136,118
FHLB borrowings:
Fixed rate credit		6,275
Advances	150,000	155,283
Total	150,000	161,558
Subordinated debt	15,464	15,464
Other debt	624	413
Total borrowings	300,396	313,553
Retail
Securities sold under agreements to repurchase:
Securities sold under agreements to repurchase	68,308	77,922
Wholesale
Securities sold under agreements to repurchase:
Securities sold under agreements to repurchase	$ 50,000	$ 58,196

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Total amount of interest-bearing domestic deposit liabilities, which may include brokered, retail, demand, checking, notice of withdrawal, money market and other interest-bearing deposits.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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