Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities:
Net Income	$ 17,684	$ 16,548
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Loan Losses	1,100	5,350
Depreciation and Amortization	1,293	1,358
Net Amortization of Investment Security Discounts & Premiums	2,852	624
Net Gain on Investment Securities	(149)	0
Net Gain on Sale of Property & Equipment	0	(5)
Net Change in Operating Assets & Liabilities:
Net (Increase) Decrease in Interest Receivable and Other Assets	(1,418)	2,325
Net Increase in Interest Payable and Other Liabilities	2,472	13
Net Cash Provided by Operating Activities	23,834	26,213
Investing Activities:
Purchase of Investment Securities Available-for-Sale	(122,966)	(136,264)
Proceeds from Sold, Matured, or Called Securities Available-for-Sale	144,383	150,104
Purchase of Investment Securities Held-to-Maturity	(10,569)	(1,300)
Proceeds from Matured, or Called Securities Held-to-Maturity	4,675	2,412
Net Loans Paid, Originated or Acquired	(47,728)	(6,234)
Principal Collected on Loans Previously Charged Off	266	83
Additions to Premises and Equipment	(180)	(1,419)
Proceeds from Disposition of Property and Equipment	0	20
Net Cash (Used) Provided by Investing Activities	(32,119)	7,402
Financing Activities:
Net Increase in Deposits	5,308	22,785
Net Decrease in Securities Sold Under Agreement to Repurchase	(60,000)	0
Net Change in Other Borrowings	(48)	(45)
Stock Repurchases	(576)	0
Cash Dividends	(4,595)	(4,404)
Net Cash (Used) Provided by Financing Activities	(59,911)	18,336
(Decrease) Increase in Cash and Cash Equivalents	(68,196)	51,951
Cash and Cash Equivalents at Beginning of Period	101,660	60,660
Cash and Cash Equivalents at End of Period	$ 33,464	$ 112,611