Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 15,148	$ 14,059
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,411	2,332
Loss on sale of other real estate owned	232	530
Provision for loan losses	9,450	11,800
Deferred tax (benefit) expense	(1,394)	667
Stock based compensation expense	74	89
Net loss on sale of bank premises and equipment	0	39
Net gain on sales and calls of securities	(1,138)	(1,541)
Decrease (increase) in taxes receivable	1,542	(10,084)
Decrease in interest receivable	312	2,371
Decrease in interest payable	(215)	(303)
Decrease in other assets	6,474	1,325
Decrease in accrued expenses and other liabilities	(404)	(530)
Total adjustments	17,344	6,695
Net cash provided by operating activities	32,492	20,754
Cash flows from investing activities:
Proceeds from sales and calls of securities available for sale	403,637	649,747
Proceeds from calls and maturities of held to maturity securities	37,184	152,549
Purchases of securities available for sale	(419,085)	(510,553)
Proceeds from maturities of securities available for sale	9,079	8,858
Net increase in loans	(81,961)	(63,276)
Proceeds from dispositions of other real estate owned	3,117	7,516
Purchases of bank premises and equipment	(1,811)	(1,808)
Net cash (used in) provided by investing activities	(49,840)	243,033
Cash flows from financing activities:
Net increase in deposits	98,444	131,374
Net increase in short-term borrowings	4,192	8,941
Proceeds from sale of treasury stock	1,468	1,399
Dividends paid	(10,130)	(9,588)
Net cash provided by financing activities	93,974	132,126
Net increase in cash and cash equivalents	76,626	395,913
Cash and cash equivalents at beginning of period	444,250	145,894
Cash and cash equivalents at end of period	520,876	541,807
Cash paid during the year for:
Interest paid	13,910	19,093
Income taxes paid	6,722	18,057
Other non cash items:
Transfer of loans to other real estate owned	3,452	4,428
Increase in dividends payable	16	14
Change in unrealized gain on securities available for sale-gross of deferred taxes	11,673	6,133
Change in deferred tax effect on unrealized gain on securities available for sale	(4,654)	(2,445)
Amortization of prior service cost on pension and post retirement plans	(89)	(202)
Change in deferred tax effect of amortization of prior service cost	$ 35	$ 80