Fair Value Measurements (Schedule Of Estimates Of Fair Value Of Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets:
Securities held-to-maturity	$ 3,994	$ 13,454
Liabilities:
Deposits	1,098,730	919,346
Long-term debt	16,495	16,495
Carrying Amount [Member]
Assets:
Cash and cash equivalents	179,621	84,994
Securities available-for-sale	329,247	377,122
Securities held-to-maturity	3,994	13,454
Other securities	13,344	11,463
Net loans	2,537,850	2,127,560
Accrued interest receivable	8,108	6,692
Derivative assets	5,810	14,012
Liabilities:
Deposits	2,807,536	2,409,316
Short-term debt	150,943	114,646
Long-term debt	16,495	16,495
Derivative liabilities	5,810	14,012
Fair Value [Member]
Assets:
Cash and cash equivalents	179,621	84,994
Securities available-for-sale	329,247	377,122
Securities held-to-maturity	6,406	13,861
Other securities	13,344	11,463
Net loans	2,574,826	2,162,856
Accrued interest receivable	8,108	6,692
Derivative assets	5,810	14,012
Liabilities:
Deposits	2,816,263	2,381,495
Short-term debt	150,944	114,648
Long-term debt	16,463	16,462
Derivative liabilities	5,810	14,012
Level 1 [Member]
Assets:
Cash and cash equivalents	179,621	84,994
Securities available-for-sale	6,463	5,959
Securities held-to-maturity	0	0
Other securities	0	0
Net loans	0	0
Accrued interest receivable	8,108	6,692
Derivative assets	0	0
Liabilities:
Deposits	1,708,806	1,447,954
Short-term debt	0	0
Long-term debt	0	0
Derivative liabilities	0	0
Level 2 [Member]
Assets:
Cash and cash equivalents	0	0
Securities available-for-sale	319,999	368,778
Securities held-to-maturity	6,406	13,861
Other securities	13,344	11,463
Net loans	0	0
Accrued interest receivable	0	0
Derivative assets	5,810	14,012
Liabilities:
Deposits	1,107,457	933,541
Short-term debt	150,944	114,648
Long-term debt	16,463	16,462
Derivative liabilities	5,810	14,012
Level 3 [Member]
Assets:
Cash and cash equivalents	0	0
Securities available-for-sale	2,785	2,385
Securities held-to-maturity	0	0
Other securities	0	0
Net loans	2,574,826	2,162,856
Accrued interest receivable	0	0
Derivative assets	0	0
Liabilities:
Deposits	0	0
Short-term debt	0	0
Long-term debt	0	0
Derivative liabilities	$ 0	$ 0