Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net income	$ 8,909	$ 7,382
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,246	1,214
Net loss on sale of other real estate owned	193	95
Writedown of other real estate owned	384	1,056
Provision for loan losses	3,100	4,600
Deferred tax (benefit) expense	437	(1,091)
Stock based compensation expense	90	37
Net gain on sale of securities available for sale	(677)	(287)
Decrease (increase) in taxes receivable	(1,934)	(2,975)
Decrease (increase) in interest receivable	2,106	(440)
Decrease in interest payable	0	(131)
Decrease (increase) in other assets	(160)	2,219
Increase (decrease) in accrued expenses and other liabilities	(2,155)	(1,851)
Total adjustments	2,630	2,446
Net cash provided by operating activities	11,539	9,828
Cash flows from investing activities:
Proceeds from sales and calls of securities available for sale	272,582	21,996
Purchases of securities available for sale	(444,091)	(150,416)
Proceeds from maturities of securities available for sale	400	4,830
Proceeds from calls and maturities of held to maturity securities	47,650	20,361
Purchases of held to maturity securities	(10,303)	0
Net increase in loans	(8,680)	(8,519)
Proceeds from dispositions of other real estate owned	3,371	1,389
Purchases of bank premises and equipment	(1,339)	(857)
Net cash used in investing activities	(140,410)	(111,216)
Cash flows from financing activities:
Net increase in deposits	115,377	38,954
Net increase in short-term borrowings	11,439	13,095
Proceeds from sales of treasury stock	724	739
Dividends paid	(6,131)	(5,062)
Net cash provided by financing activities	121,409	47,726
Net increase decrease in cash and cash equivalents	(7,462)	(53,662)
Cash and cash equivalents at beginning of period	532,943	444,250
Cash and cash equivalents at end of period	525,481	390,588
Cash paid during the year for:
Interest paid	5,909	7,206
Income taxes paid	7,184	6,958
Non cash investing and financing activites:
Transfer of loans to real estate owned	2,387	1,824
Increase (decrease) in dividends payable	8	7
Change in unrealized gain (loss) on securities available for sale - gross of deferred taxes	4,203	(12)
Change in deferred tax effect on unrealized gain (loss) on securities available for sale, net of reclassification adjustment	(1,676)	4
Amortization of net actuarial loss and prior service credit on pension and post retirement plans, gross of deferred taxes	31	(81)
Change in deferred tax effect of amortization of net actuarial loss and prior service credit on pension and post retirement plans	$ (12)	$ 32