Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME	$ 45,436	$ 40,240	$ 22,989
ADJUSTMENTS TO RECONCILE NET INCOME TO NET CASH PROVIDED BY OPERATING ACTIVITIES:
Depreciation and Amortization	9,634	9,880	5,744
Provision for Loan Losses	11,482	18,655	17,335
Deferred Income Tax Expense (Benefit)	91	(2,494)	(2,281)
Net Gain on Sale of Investments	(723)	(458)	(1,354)
Loss on Write-Down of Investments in Securities Available for Sale	243	334	8,958
Loss on Sale of Fixed Assets	353	280	85
Gain Resulting from Early Termination of a Hedging Relationship			(3,778)
Loss on Sale of Other Real Estate Owned and Foreclosed Assets	1,562	367	415
Realized Gain on Sale Leaseback Transaction	(1,034)	(1,034)	(1,034)
Stock Based Compensation	2,483	1,666	774
Increase in Cash Surrender Value of Life Insurance Policies	(3,159)	(3,192)	(2,651)
Change in Fair Value on Loans Held for Sale	(856)	593
Net Change In:
Trading Assets	(643)	(1,426)	(3,470)
Loans Held for Sale	8,273	(15,044)	(5,115)
Other Assets	(32,482)	(15,608)	9,820
Other Liabilities	14,871	13,894	(15,021)
TOTAL ADJUSTMENTS	10,095	6,413	8,427
NET CASH PROVIDED BY OPERATING ACTIVITIES	55,531	46,653	31,416
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Proceeds from Sales of Securities Available for Sale	14,639	6,423	168,556
Proceeds from Maturities and Principal Repayments of Securities Available for Sale	108,312	173,608	158,458
Purchases of Securities Available for Sale	(50,975)	(46,349)	(92,966)
Proceeds from Maturities and Principal Repayments of Securities Held to Maturity	44,090	22,570	7,660
Purchases of Securities Held to Maturity	(47,343)	(132,331)	(68,381)
Purchases of Bank Owned Life Insurance	(267)	(267)	(267)
Net Increase in Loans	(256,282)	(187,374)	(69,905)
Cash Used in Business Combinations	(457)	(269)	97,335
Purchase of bank premises and equipment	(8,317)	(7,022)	(6,601)
Proceeds from the Sale of Bank Premises and Equipment	496	37	67
Proceeds Resulting from Early Termination of a Hedging Relationship			6,099
Proceeds from the Sale of Other Real Estate Owned and Foreclosed Assets	6,276	7,190	5,124
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(189,828)	(163,784)	205,179
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Net Decrease in Time Deposits	(63,014)	(224,605)	(170,699)
Net Increase in Other Deposits	312,060	477,094	265,506
Net Increase (Decrease) in Federal Funds Purchased and Assets Sold Under Repurchase Agreements	48,009	(22,333)	19,572
Net Decrease in Short Term Federal Home Loan Bank Advances	(5,000)	(10,000)	(81,000)
Net Decrease in Long Term Federal Home Loan Bank Advances	(67,144)	(50,000)	(180,910)
Net Increase (Decrease) in Treasury Tax & Loan Notes	(3,044)	892	(794)
Proceeds from Issuance of Preferred Stock and Stock Warrants			78,158
Redemption of Preferred Stock			(78,158)
Redemption of Warrants			(2,200)
Proceeds from Exercise of Stock Options	4,127	743	307
Restricted Shares Surrendered	(361)	(114)	(3)
Tax Benefit (Expense) from Equity Award Activity and Deferred Compensation	100	68	(3)
Proceeds from Shares Issued Under Direct Stock Purchase Plan	824
DIVIDENDS PAID
Preferred Dividends			(1,118)
Common Dividends	(16,038)	(15,237)	(13,455)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	210,519	156,508	(164,797)
NET INCREASE IN CASH AND CASH EQUIVALENTS	76,222	39,377	71,798
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	161,282	121,905	50,107
CASH AND CASH EQUIVALENTS AT END OF YEAR	237,504	161,282	121,905
CASH PAID DURING THE YEAR FOR
Interest on Deposits and Borrowings	29,659	38,528	52,884
Income Taxes	18,962	12,627	4,877
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Transfer of Loans to Foreclosed Assets	6,285	10,836	4,440
IN CONJUNCTION WITH THE PURCHASE ACQUISITION DETAILED IN NOTE 2 TO THE CONSOLIDATED FINANCIAL STATEMENTS, ASSETS WERE ACQUIRED AND LIABILITIES WERE ASSUMED AS FOLLOWS:
Common Stock Issued for Acquisition			84,498
Fair Value of Assets Acquired, Net of Cash Acquired			908,359
Fair Value of Liabilities Assumed			$ 921,945