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Stock Incentive Plans (Summary Of Information Concerning Stock Option Awards) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Stock Incentive Plans [Abstract]
Shares, Options outstanding at beginning of period	586,020	770,610
Shares, Acquired from Parkvale	627,808
Shares, Exercised	(36,385)	(8,389)
Shares, Forfeited	(227,737)	(120,207)
Shares, Options outstanding and exercisable at end of period	949,706	642,014
Weighted Average Exercise Price, Options outstanding at beginning of period	$ 14.93	$ 14.28
Weighted Average Exercise Price, Acquired from Parkvale	$ 10.41
Weighted Average Exercise Price, Exercised	$ 7.67	$ 2.68
Weighted Average Exercise Price, Forfeited	$ 14.04	$ 11.65
Weighted Average Exercise Price, Options outstanding and exercisable at end of period	$ 12.43	$ 14.93

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.

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The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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The weighted average price at which grantees could acquire or could have acquired the underlying shares with respect to any other type of change in shares reserved for issuance under the stock option plan during the reporting period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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