CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Investment securities:
Held to maturity, fair value	$ 64,796	$ 12,234
STOCKHOLDERS' EQUITY
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized (in shares)	15,000,000us-gaap_CommonStockSharesAuthorized	15,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares, issued (in shares)	13,836,508us-gaap_CommonStockSharesIssued	13,738,752us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	11,670,770us-gaap_CommonStockSharesOutstanding	11,573,014us-gaap_CommonStockSharesOutstanding
Treasury stock, shares (in shares)	2,165,738us-gaap_TreasuryStockShares	2,165,738us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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