Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financial Assets:
Held to maturity securities, fair value	$ 11,252	$ 12,115
Accrued interest receivable	5,380	5,335
Financial Liabilities:
Accrued interest payable	807	832
Other borrowings	85,692	80,632
Carrying Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	266,574	279,839
Held to maturity securities, fair value	10,700	11,720
Accrued interest receivable	5,380	5,335
Investments included in other assets	7,348	8,140
Financial Liabilities:
Deposits	1,605,906	1,584,086
Accrued interest payable	807	832
Other liabilities	6,804	8,248
Other borrowings	85,692	80,632
Subordinated debentures	46,393	46,393
Carrying Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	1,285,197	1,234,240
Fair Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	266,574	279,839
Held to maturity securities, fair value	11,252	12,115
Accrued interest receivable	5,380	5,335
Investments included in other assets	7,348	8,140
Financial Liabilities:
Deposits	1,507,750	1,486,939
Accrued interest payable	807	832
Other liabilities	6,804	8,248
Other borrowings	88,462	83,593
Subordinated debentures	46,393	46,393
Fair Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	$ 1,237,328	$ 1,190,869