CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 26,792	$ 22,401
Adjustments to reconcile net income to net cash from operating activities:
Depreciation	2,029	1,660
Provision for loan losses	1,299	10,900
Loss on sale and write down of other real estate owned	214	358
Amortization of intangible assets	39	41
Amortization of loan servicing rights	541	427
Net change in loan servicing rights valuation allowance	84	162
Loans originated for sale	(89,595)	(48,294)
Net gain on sales of loans	(1,926)	(1,004)
Proceeds from sale of loans	87,180	49,086
Net loss on sales of premises and equipment	4	17
Net loss on sales and calls of securities available for sale	377	167
Impairment on available for sale securities	1,026	154
Net securities amortization	5,210	2,255
Stock compensation expense	1,161	1,061
Earnings on life insurance	(708)	(726)
Tax benefit of stock option exercises	(535)	(96)
Net change:
Accrued income receivable	(123)	179
Accrued expenses payable	2,027	1,259
Other assets	2,322	(1,565)
Other liabilities	(615)	(192)
Total adjustments	10,011	15,849
Net cash from operating activities	36,803	38,250
Cash flows from investing activities:
Proceeds from sale of securities available for sale	27,492	73,318
Proceeds from maturities, calls and principal paydowns of securities available for sale	82,499	58,668
Purchases of securities available for sale	(128,249)	(147,042)
Purchase of life insurance	(210)	(162)
Net (increase) decrease in total loans	27,238	(95,690)
Proceeds from sales of land, premises and equipment	2	33
Purchases of land, premises and equipment	(2,268)	(2,965)
Proceeds from sales of other real estate	1,698	1,254
Net cash from investing activities	8,202	(112,586)
Cash flows from financing activities:
Net increase in total deposits	63,401	155,334
Net decrease in short-term borrowings	(23,438)	(32,476)
Payments on long-term borrowings	(2)	(1)
Common dividends paid	(8,067)	(7,533)
Preferred dividends paid	(13)	(13)
Proceeds from stock option exercise	323	395
Purchase of treasury stock	(391)	(233)
Net cash from financing activities	31,813	115,473
Net change in cash and cash equivalents	76,818	41,137
Cash and cash equivalents at beginning of the period	104,584	60,141
Cash and cash equivalents at end of the period	181,402	101,278
Cash paid during the period for:
Interest	19,937	22,095
Income taxes	11,028	14,629
Supplemental non-cash disclosures:
Loans transferred to other real estate	$ 296	$ 807